modpost: drop RCS/CVS $Revision handling in MODULE_VERSION()

As far as I understood, this code gets rid of '$Revision$' or '$Revision:'
of CVS, RCS or whatever in MODULE_VERSION() tags.

Remove the primeval code.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

scripts/mod/sumversion.c

@@ -429,69 +429,3 @@ void get_src_version(const char *modname, char sum[], unsigned sumlen)
 release:
 	release_file(file, len);
 }
-
-static void write_version(const char *filename, const char *sum,
-			  unsigned long offset)
-{
-	int fd;
-
-	fd = open(filename, O_RDWR);
-	if (fd < 0) {
-		warn("changing sum in %s failed: %s\n",
-			filename, strerror(errno));
-		return;
-	}
-
-	if (lseek(fd, offset, SEEK_SET) == (off_t)-1) {
-		warn("changing sum in %s:%lu failed: %s\n",
-			filename, offset, strerror(errno));
-		goto out;
-	}
-
-	if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
-		warn("writing sum in %s failed: %s\n",
-			filename, strerror(errno));
-		goto out;
-	}
-out:
-	close(fd);
-}
-
-static int strip_rcs_crap(char *version)
-{
-	unsigned int len, full_len;
-
-	if (strncmp(version, "$Revision", strlen("$Revision")) != 0)
-		return 0;
-
-	/* Space for version string follows. */
-	full_len = strlen(version) + strlen(version + strlen(version) + 1) + 2;
-
-	/* Move string to start with version number: prefix will be
-	 * $Revision$ or $Revision: */
-	len = strlen("$Revision");
-	if (version[len] == ':' || version[len] == '$')
-		len++;
-	while (isspace(version[len]))
-		len++;
-	memmove(version, version+len, full_len-len);
-	full_len -= len;
-
-	/* Preserve up to next whitespace. */
-	len = 0;
-	while (version[len] && !isspace(version[len]))
-		len++;
-	memmove(version + len, version + strlen(version),
-		full_len - strlen(version));
-	return 1;
-}
-
-/* Clean up RCS-style version numbers. */
-void maybe_frob_rcs_version(const char *modfilename,
-			    char *version,
-			    void *modinfo,
-			    unsigned long version_offset)
-{
-	if (strip_rcs_crap(version))
-		write_version(modfilename, version, version_offset);
-}