MIPS: fw: arc: remove unused ARC code

Current kernel uses only a few ARC calls. Drop all unused ARC functions.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

arch/mips/fw/arc/env.c

@@ -19,9 +19,3 @@ ArcGetEnvironmentVariable(CHAR *name)
 {
 	return (CHAR *) ARC_CALL1(get_evar, name);
 }
-
-LONG __init
-ArcSetEnvironmentVariable(PCHAR name, PCHAR value)
-{
-	return ARC_CALL2(set_evar, name, value);
-}