Merge branch 'nd/no-more-fnmatch'

We started using wildmatch() in place of fnmatch(3); complete the
process and stop using fnmatch(3).

* nd/no-more-fnmatch:
actually remove compat fnmatch source code
stop using fnmatch (either native or compat)
Revert "test-wildmatch: add "perf" command to compare wildmatch and fnmatch"
use wildmatch() directly without fnmatch() wrapper

diff --cc Makefile
Simple merge

diff --cc builtin/apply.c
Simple merge

diff --cc builtin/describe.c
Simple merge

diff --cc diffcore-order.c
Simple merge

diff --cc dir.c
Simple merge

diff --cc git-compat-util.h
Simple merge

diff --cc revision.c
Simple merge