builtin: remove USE_THE_REPOSITORY_VARIABLE from builtin.h

Instead of including USE_THE_REPOSITORY_VARIABLE by default on every
builtin, remove it from builtin.h and add it to all the builtins that
include builtin.h (by definition, that means all builtins/*.c).

Also, remove the include statement for repository.h since it gets
brought in through builtin.h.

The next step will be to migrate each builtin
from having to use the_repository.

Signed-off-by: John Cai <johncai86@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/annotate.c

@@ -3,6 +3,8 @@
  *
  * Copyright (C) 2006 Ryan Anderson
  */
+
+#define USE_THE_REPOSITORY_VARIABLE
 #include "git-compat-util.h"
 #include "builtin.h"
 #include "strvec.h"