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, 57 deletions

diff --git a/third_party/git/sigchain.h b/third_party/git/sigchain.h
deleted file mode 100644
index 8e6bada8928c..000000000000
--- a/third_party/git/sigchain.h
+++ /dev/null
@@ -1,57 +0,0 @@
-#ifndef SIGCHAIN_H
-#define SIGCHAIN_H
-
-/**
- * Code often wants to set a signal handler to clean up temporary files or
- * other work-in-progress when we die unexpectedly. For multiple pieces of
- * code to do this without conflicting, each piece of code must remember
- * the old value of the handler and restore it either when:
- *
- *   1. The work-in-progress is finished, and the handler is no longer
- *      necessary. The handler should revert to the original behavior
- *      (either another handler, SIG_DFL, or SIG_IGN).
- *
- *   2. The signal is received. We should then do our cleanup, then chain
- *      to the next handler (or die if it is SIG_DFL).
- *
- * Sigchain is a tiny library for keeping a stack of handlers. Your handler
- * and installation code should look something like:
- *
- * ------------------------------------------
- *   void clean_foo_on_signal(int sig)
- *   {
- * 	  clean_foo();
- * 	  sigchain_pop(sig);
- * 	  raise(sig);
- *   }
- *
- *   void other_func()
- *   {
- * 	  sigchain_push_common(clean_foo_on_signal);
- * 	  mess_up_foo();
- * 	  clean_foo();
- *   }
- * ------------------------------------------
- *
- */
-
-/**
- * Handlers are given the typedef of sigchain_fun. This is the same type
- * that is given to signal() or sigaction(). It is perfectly reasonable to
- * push SIG_DFL or SIG_IGN onto the stack.
- */
-typedef void (*sigchain_fun)(int);
-
-/* You can sigchain_push and sigchain_pop individual signals. */
-int sigchain_push(int sig, sigchain_fun f);
-int sigchain_pop(int sig);
-
-/**
- * push the handler onto the stack for the common signals:
- * SIGINT, SIGHUP, SIGTERM, SIGQUIT and SIGPIPE.
- */
-void sigchain_push_common(sigchain_fun f);
-
-void sigchain_pop_common(void);
-
-#endif /* SIGCHAIN_H */