Retire check-files.

The king penguin said:

    It has no point any more, all the tools check the file
    status on their own, and yes, the thing should probably be
    removed.

and the faithful servant makes it so.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Documentation/git.txt

@@ -72,9 +72,6 @@ Interrogation commands
 link:git-cat-file.html[git-cat-file]::
 	Provide content or type information for repository objects
 
-link:git-check-files.html[git-check-files]::
-	Verify a list of files are up-to-date
-
 link:git-diff-cache.html[git-diff-cache]::
 	Compares content and mode of blobs between the cache and repository
 

Makefile

@@ -75,7 +75,7 @@ SCRIPTS += git-send-email-script
 PROG=   git-update-cache git-diff-files git-init-db git-write-tree \
 	git-read-tree git-commit-tree git-cat-file git-fsck-cache \
 	git-checkout-cache git-diff-tree git-rev-tree git-ls-files \
-	git-check-files git-ls-tree git-merge-base git-merge-cache \
+	git-ls-tree git-merge-base git-merge-cache \
 	git-unpack-file git-export git-diff-cache git-convert-cache \
 	git-ssh-push git-ssh-pull git-rev-list git-mktag \
 	git-diff-helper git-tar-tree git-local-pull git-hash-object \

check-files.c

-/*
- * check-files.c
- *
- * Check that a set of files are up-to-date in the filesystem or
- * do not exist. Used to verify a patch target before doing a patch.
- *
- * Copyright (C) 2005 Linus Torvalds
- */
-#include "cache.h"
-
-static void check_file(const char *path)
-{
-	int fd = open(path, O_RDONLY);
-	struct cache_entry *ce;
-	struct stat st;
-	int pos, changed;
-
-	/* Nonexistent is fine */
-	if (fd < 0) {
-		if (errno != ENOENT)
-			die("%s: %s", path, strerror(errno));
-		return;
-	}
-
-	/* Exists but is not in the cache is not fine */
-	pos = cache_name_pos(path, strlen(path));
-	if (pos < 0)
-		die("preparing to update existing file '%s' not in cache", path);
-	ce = active_cache[pos];
-
-	if (lstat(path, &st) < 0)
-		die("lstat(%s): %s", path, strerror(errno));
-
-	changed = ce_match_stat(ce, &st);
-	if (changed)
-		die("preparing to update file '%s' not uptodate in cache", path);
-}
-
-int main(int argc, char **argv)
-{
-	int i;
-
-	read_cache();
-	for (i = 1; i < argc ; i++)
-		check_file(argv[i]);
-	return 0;
-}