kconfig: do not record timestamp in .config

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

Documentation/kbuild/kconfig.txt

@@ -48,11 +48,6 @@ KCONFIG_OVERWRITECONFIG
 If you set KCONFIG_OVERWRITECONFIG in the environment, Kconfig will not
 break symlinks when .config is a symlink to somewhere else.
 
-KCONFIG_NOTIMESTAMP
---------------------------------------------------
-If this environment variable exists and is non-null, the timestamp line
-in generated .config files is omitted.
-
 ______________________________________________________________________
 Environment variables for '{allyes/allmod/allno/rand}config'
 

scripts/kconfig/confdata.c

@@ -560,8 +560,6 @@ int conf_write(const char *name)
 	const char *basename;
 	const char *str;
 	char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
-	time_t now;
-	int use_timestamp = 1;
 	char *env;
 
 	dirname[0] = 0;
@@ -598,19 +596,11 @@ int conf_write(const char *name)
 	if (!out)
 		return 1;
 
-	time(&now);
-	env = getenv("KCONFIG_NOTIMESTAMP");
-	if (env && *env)
-		use_timestamp = 0;
-
 	fprintf(out, _("#\n"
 		       "# Automatically generated make config: don't edit\n"
 		       "# %s\n"
-		       "%s%s"
 		       "#\n"),
-		     rootmenu.prompt->text,
-		     use_timestamp ? "# " : "",
-		     use_timestamp ? ctime(&now) : "");
+		     rootmenu.prompt->text);
 
 	if (!conf_get_changed())
 		sym_clear_all_valid();