Retire git-log.sh (take #4)

Noticed by Johannes.  We do not install it anymore, but still have
been shipping the source, which was crazy.

Signed-off-by: Junio C Hamano <junkio@cox.net>

git-log.sh

@@ -1,15 +0,0 @@
-#!/bin/sh
-#
-# Copyright (c) 2005 Linus Torvalds
-#
-
-USAGE='[--max-count=<n>] [<since>..<limit>] [--pretty=<format>] [git-rev-list options]'
-SUBDIRECTORY_OK='Yes'
-. git-sh-setup
-
-revs=$(git-rev-parse --revs-only --no-flags --default HEAD "$@") || exit
-[ "$revs" ] || {
-	die "No HEAD ref"
-}
-git-rev-list --pretty $(git-rev-parse --default HEAD "$@") |
-LESS=-S ${PAGER:-less}