chore(3p/git): Unvendor git and track patches instead r/2903

This was vendored a long time ago under the expectation that keeping
it in sync with cgit would be easier this way, but it has proven not
to be a big issue.

On the other hand, a vendored copy of git is an annoying maintenance
burden. It is much easier to rebase the single (dottime) patch that we
have.

This removes the vendored copy of git and instead passes the git
source code to cgit via `pkgs.srcOnly`, which includes the applied
patch so that cgit can continue rendering dottime.

Change-Id: If31f62dea7ce688fd1b9050204e9378019775f2b

1 files changed, 0 insertions, 149 deletions

diff --git a/third_party/git/Documentation/git-difftool.txt b/third_party/git/Documentation/git-difftool.txt
deleted file mode 100644
index 484c485fd0..0000000000
--- a/third_party/git/Documentation/git-difftool.txt
+++ /dev/null
@@ -1,149 +0,0 @@
-git-difftool(1)
-===============
-
-NAME
-----
-git-difftool - Show changes using common diff tools
-
-SYNOPSIS
---------
-[verse]
-'git difftool' [<options>] [<commit> [<commit>]] [--] [<path>...]
-
-DESCRIPTION
------------
-'git difftool' is a Git command that allows you to compare and edit files
-between revisions using common diff tools.  'git difftool' is a frontend
-to 'git diff' and accepts the same options and arguments. See
-linkgit:git-diff[1].
-
-OPTIONS
--------
--d::
---dir-diff::
-	Copy the modified files to a temporary location and perform
-	a directory diff on them. This mode never prompts before
-	launching the diff tool.
-
--y::
---no-prompt::
-	Do not prompt before launching a diff tool.
-
---prompt::
-	Prompt before each invocation of the diff tool.
-	This is the default behaviour; the option is provided to
-	override any configuration settings.
-
--t <tool>::
---tool=<tool>::
-	Use the diff tool specified by <tool>.  Valid values include
-	emerge, kompare, meld, and vimdiff. Run `git difftool --tool-help`
-	for the list of valid <tool> settings.
-+
-If a diff tool is not specified, 'git difftool'
-will use the configuration variable `diff.tool`.  If the
-configuration variable `diff.tool` is not set, 'git difftool'
-will pick a suitable default.
-+
-You can explicitly provide a full path to the tool by setting the
-configuration variable `difftool.<tool>.path`. For example, you
-can configure the absolute path to kdiff3 by setting
-`difftool.kdiff3.path`. Otherwise, 'git difftool' assumes the
-tool is available in PATH.
-+
-Instead of running one of the known diff tools,
-'git difftool' can be customized to run an alternative program
-by specifying the command line to invoke in a configuration
-variable `difftool.<tool>.cmd`.
-+
-When 'git difftool' is invoked with this tool (either through the
-`-t` or `--tool` option or the `diff.tool` configuration variable)
-the configured command line will be invoked with the following
-variables available: `$LOCAL` is set to the name of the temporary
-file containing the contents of the diff pre-image and `$REMOTE`
-is set to the name of the temporary file containing the contents
-of the diff post-image.  `$MERGED` is the name of the file which is
-being compared. `$BASE` is provided for compatibility
-with custom merge tool commands and has the same value as `$MERGED`.
-
---tool-help::
-	Print a list of diff tools that may be used with `--tool`.
-
---[no-]symlinks::
-	'git difftool''s default behavior is create symlinks to the
-	working tree when run in `--dir-diff` mode and the right-hand
-	side of the comparison yields the same content as the file in
-	the working tree.
-+
-Specifying `--no-symlinks` instructs 'git difftool' to create copies
-instead.  `--no-symlinks` is the default on Windows.
-
--x <command>::
---extcmd=<command>::
-	Specify a custom command for viewing diffs.
-	'git-difftool' ignores the configured defaults and runs
-	`$command $LOCAL $REMOTE` when this option is specified.
-	Additionally, `$BASE` is set in the environment.
-
--g::
---[no-]gui::
-	When 'git-difftool' is invoked with the `-g` or `--gui` option
-	the default diff tool will be read from the configured
-	`diff.guitool` variable instead of `diff.tool`. The `--no-gui`
-	option can be used to override this setting. If `diff.guitool`
-	is not set, we will fallback in the order of `merge.guitool`,
-	`diff.tool`, `merge.tool` until a tool is found.
-
---[no-]trust-exit-code::
-	'git-difftool' invokes a diff tool individually on each file.
-	Errors reported by the diff tool are ignored by default.
-	Use `--trust-exit-code` to make 'git-difftool' exit when an
-	invoked diff tool returns a non-zero exit code.
-+
-'git-difftool' will forward the exit code of the invoked tool when
-`--trust-exit-code` is used.
-
-See linkgit:git-diff[1] for the full list of supported options.
-
-CONFIG VARIABLES
-----------------
-'git difftool' falls back to 'git mergetool' config variables when the
-difftool equivalents have not been defined.
-
-diff.tool::
-	The default diff tool to use.
-
-diff.guitool::
-	The default diff tool to use when `--gui` is specified.
-
-difftool.<tool>.path::
-	Override the path for the given tool.  This is useful in case
-	your tool is not in the PATH.
-
-difftool.<tool>.cmd::
-	Specify the command to invoke the specified diff tool.
-+
-See the `--tool=<tool>` option above for more details.
-
-difftool.prompt::
-	Prompt before each invocation of the diff tool.
-
-difftool.trustExitCode::
-	Exit difftool if the invoked diff tool returns a non-zero exit status.
-+
-See the `--trust-exit-code` option above for more details.
-
-SEE ALSO
---------
-linkgit:git-diff[1]::
-	 Show changes between commits, commit and working tree, etc
-
-linkgit:git-mergetool[1]::
-	Run merge conflict resolution tools to resolve merge conflicts
-
-linkgit:git-config[1]::
-	 Get and set repository or global options
-
-GIT
----
-Part of the linkgit:git[1] suite