raid: remove tile specific raid6 implementation

The Tile architecture is getting removed, so we no longer need this either.

Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

lib/raid6/algos.c

@@ -75,9 +75,6 @@ const struct raid6_calls * const raid6_algos[] = {
 	&raid6_altivec4,
 	&raid6_altivec8,
 #endif
-#if defined(CONFIG_TILEGX)
-	&raid6_tilegx8,
-#endif
 #if defined(CONFIG_S390)
 	&raid6_s390vx8,
 #endif