Remove the GNU patch(1) sources that were committed to HEAD.

Approved by:	ache, cvs, ru
MFC after:	2 weeks

contrib/patch/FREEBSD-upgrade

@@ -1,34 +0,0 @@
-This directory contains the virgin patch source on the vendor branch.  Do
-not under any circumstances commit new versions onto the mainline, new
-versions or official-patch versions must be imported.
-
-To prepare a new patch dist for import, extract it into a fresh directory
-and remove the following files (and any others that are non-FreeBSD
-specific):
-
-memchr.c
-mkinstalldirs
-pc/*
-rename.c
-
-The only other change that was made to the original tarball was to
-rename patch.man to patch.1.
-
-patch has RCS Id, Name and Header tags. It needs to be imported with -ko.
-
-It is imported from it's top level directory something like this:
-  cvs -n import -ko src/contrib/patch FSF patch_<version>
-
-The -n option is "don't do anything" so you can see what is about to happen
-first.  Remove it when it looks ok.
-
-The initial import was done with:
-  cvs import -ko src/contrib/patch FSF patch_2_4
-
-When new versions are imported, cvs will give instructions on how to merge
-the local and vendor changes when/if conflicts arise..
-
-steve@freebsd.org - 29 June 1997
-
-Current local changes:
-  - Make patch(1) compile -Wall clean.