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diff --git a/configs/shared/emacs/.emacs.d/elpa/nix-mode-20180908.2240/nix.el b/configs/shared/emacs/.emacs.d/elpa/nix-mode-20180908.2240/nix.el
deleted file mode 100644
index 3261e075b4e7..000000000000
--- a/configs/shared/emacs/.emacs.d/elpa/nix-mode-20180908.2240/nix.el
+++ /dev/null
@@ -1,289 +0,0 @@
-;;; nix.el -- run nix commands in Emacs -*- lexical-binding: t -*-
-
-;; Author: Matthew Bauer <mjbauer95@gmail.com>
-;; Homepage: https://github.com/NixOS/nix-mode
-;; Keywords: nix
-
-;; This file is NOT part of GNU Emacs.
-
-;;; Commentary:
-
-;; To use this just run:
-
-;; M-x RET nix-shell RET
-
-;; This will give you some
-
-;;; Code:
-
-(require 'pcomplete)
-
-(defgroup nix nil
-  "Nix-related customizations"
-  :group 'languages)
-
-(defcustom nix-executable (executable-find "nix")
-  "Nix executable location."
-  :group 'nix
-  :type 'string)
-
-(defcustom nix-build-executable (executable-find "nix-build")
-  "Nix-build executable location."
-  :group 'nix
-  :type 'string)
-
-(defcustom nix-instantiate-executable (executable-find "nix-instantiate")
-  "Nix executable location."
-  :group 'nix
-  :type 'string)
-
-(defcustom nix-store-executable (executable-find "nix-store")
-  "Nix executable location."
-  :group 'nix
-  :type 'string)
-
-(defcustom nix-shell-executable (executable-find "nix-shell")
-  "Location of ‘nix-shell’ executable."
-  :group 'nix
-  :type 'string)
-
-(defcustom nix-store-dir "/nix/store"
-  "Nix store directory."
-  :group 'nix
-  :type 'string)
-
-(defcustom nix-state-dir "/nix/var"
-  "Nix store directory."
-  :group 'nix
-  :type 'string)
-
-(defun nix-system ()
-  "Get the current system tuple."
-  (let ((stdout (generate-new-buffer "nix eval"))
-        result)
-    (call-process nix-executable nil (list stdout nil) nil
-		  "eval" "--raw" "(builtins.currentSystem)")
-    (with-current-buffer stdout (setq result (buffer-string)))
-    (kill-buffer stdout)
-    result))
-
-(defvar nix-commands
-  '("add-to-store"
-    "build"
-    "cat-nar"
-    "cat-store"
-    "copy"
-    "copy-sigs"
-    "dump-path"
-    "edit"
-    "eval"
-    "hash-file"
-    "hash-path"
-    "log"
-    "ls-nar"
-    "ls-store"
-    "optimise-store"
-    "path-info"
-    "ping-store"
-    "repl"
-    "run"
-    "search"
-    "show-config"
-    "show-derivation"
-    "sign-paths"
-    "to-base16"
-    "to-base32"
-    "to-base64"
-    "upgrade-nix"
-    "verify"
-    "why-depends"))
-
-(defvar nix-toplevel-options
-  '("-v"
-    "--verbose"
-    "-h"
-    "--help"
-    "--debug"
-    "--help-config"
-    "--option"
-    "--version"))
-
-(defvar nix-config-options
-  '("allowed-uris"
-    "allow-import-from-derivation"
-    "allow-new-priveleges"
-    "allowed-users"
-    "auto-optimise-store"
-    "builders"
-    "builders-use-substitutes"
-    "build-users-group"
-    "compress-build-log"
-    "connect-timeout"
-    "cores"
-    "extra-sandbox-paths"
-    "extra-substituters"
-    "fallback"
-    "fsync-metadata"
-    "hashed-mirrors"
-    "http-connections"
-    "keep-build-log"
-    "keep-derivations"
-    "keep-env-derivations"
-    "keep-outputs"
-    "max-build-log-size"
-    "max-jobs"
-    "max-silent-time"
-    "netrc-file"
-    "plugin-files"
-    "pre-build-hook"
-    "repeat"
-    "require-sigs"
-    "restrict-eval"
-    "sandbox"
-    "sandbox-dev-shm-size"
-    "sandbox-paths"
-    "secret-key-files"
-    "show-trace"
-    "substitute"
-    "substituters"
-    "system"
-    "timeout"
-    "trusted-public-keys"
-    "trusted-subtituters"
-    "trusted-users"))
-
-(defun nix--pcomplete-flags (options)
-  "Complete flags to the Nix command.
-OPTIONS a list of options to accept."
-  (while (pcomplete-match "^-" 0)
-    (pcomplete-here options)
-    (let ((last-arg (nth (1- pcomplete-index) pcomplete-args)))
-      (cond
-       ((string= "--option" last-arg)
-        (pcomplete-here nix-config-options)
-        (pcomplete-here))
-       ((or (string= "-f" last-arg) (string= "--file" last-arg))
-        (pcomplete-here (pcomplete-entries nil 'file-exists-p)))
-       ((or (string= "--arg" last-arg) (string= "--argstr" last-arg))
-        (pcomplete-here)
-        (pcomplete-here))
-       ((or (string= "-I" last-arg) (string= "--include" last-arg))
-        (pcomplete-here (pcomplete-entries nil 'file-exists-p)))
-       ((or (string= "-k" last-arg) (string= "--keep" last-arg))
-        (pcomplete-here))
-       ((or (string= "-u" last-arg) (string= "--unset" last-arg))
-        (pcomplete-here))
-       ((or (string= "-s" last-arg) (string= "--substituter" last-arg))
-        (pcomplete-here))))))
-
-;;;###autoload
-(defun pcomplete/nix ()
-  "Completion for the nix command."
-  (nix--pcomplete-flags nix-toplevel-options)
-  (pcomplete-here nix-commands)
-  (pcase (nth (1- pcomplete-index) pcomplete-args)
-    ("run"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--arg" "--argstr" "-c" "--command"
-                                     "-f" "--file" "-i" "-I" "--include"
-                                     "-k" "--keep" "-u" "--unset"))))
-    ("build"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--arg" "--argstr" "--dry-run"
-                                     "-f" "--file" "-I" "--include"
-                                     "--no-link" "-o" "--out-link"))))
-    ("add-to-store"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--dry-run" "-n" "--name"))))
-    ("copy"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--all" "--arg" "--argstr"
-                                     "-f" "--file" "--from"
-                                     "-I" "--include" "--no-check-sigs"
-                                     "--no-recursive" "-s" "--substitute"
-                                     "--to"))))
-    ("copy-sigs"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--all" "--arg" "--argstr"
-                                     "-f" "--file" "-I" "--include"
-                                     "-r" "--recursive" "-s" "--substituter"))))
-    ("dump-path"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--arg" "--argstr"
-                                     "-f" "--file" "-I" "--include"))))
-    ("edit"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--arg" "--argstr"
-                                     "-f" "--file" "-I" "--include"))))
-    ("eval"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--arg" "--argstr"
-                                     "-f" "--file" "-I" "--include"
-                                     "--json" "--raw"))))
-    ("hash-file"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--base16" "--base32"
-                                     "--base64" "--type"))))
-    ("hash-path"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--base16" "--base32"
-                                     "--base64" "--type"))))
-    ("log"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--arg" "--argstr"
-                                     "-f" "--file" "-I" "--include"
-                                     "--json" "--raw"))))
-    ("ls-nar"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("-d" "--directory"
-                                     "--json" "-l" "--long"
-                                     "-R" "--recursive"))))
-    ("ls-store"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("-d" "--directory"
-                                     "--json" "-l" "--long"
-                                     "-R" "--recursive"))))
-    ("repl"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--arg" "--argstr"
-                                     "-I" "--include"))))
-    ("search"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--arg" "--argstr"
-                                     "-f" "--file"
-                                     "-I" "--include"
-                                     "--json" "--no-cache"
-                                     "-u" "--update-cache"))))
-    ("show-config"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--json"))))
-    ("show-derivation"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--arg" "--argstr"
-                                     "-f" "--file"
-                                     "-I" "--include"
-                                     "-r" "--recursive"))))
-    ("sign-paths"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--all" "--arg" "--argstr"
-                                     "-f" "--file" "-I" "--include"
-                                     "-k" "--key-file" "-r" "--recursive"))))
-    ("upgrade-nix"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("-p" "--profile"))))
-    ("verify"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("--all" "--arg" "--argstr"
-                                     "-f" "--file" "-I" "--include"
-                                     "--no-contents" "--no-trust"
-                                     "-r" "--recursive" "-n" "--sigs-needed"
-                                     "-s" "--substuter"))))
-    ("why-depends"
-     (nix--pcomplete-flags
-      (append nix-toplevel-options '("-a" "--all" "--arg" "--argstr"
-                                     "-f" "--file" "-I" "--include"))))
-    (_ (nix--pcomplete-flags nix-toplevel-options)))
-  (pcomplete-here (pcomplete-entries)))
-
-(provide 'nix)
-;;; nix.el ends here