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/modpost.c

@@ -2066,9 +2066,6 @@ static void read_symbols(const char *modname)
 		check_sec_ref(mod, modname, &info);
 
 	version = get_modinfo(&info, "version");
-	if (version)
-		maybe_frob_rcs_version(modname, version, info.modinfo,
-				       version - (char *)info.hdr);
 	if (version || (all_versions && !is_vmlinux(modname)))
 		get_src_version(modname, mod->srcversion,
 				sizeof(mod->srcversion)-1);