ARM: UniPhier: remove unnecessary ifdef conditional

The callee (arch/arm/lib/cache-cp15.c) has a #ifdef
CONFIG_SYS_DCACHE_OFF conditional.  The same conditional in the
caller (arch/arm/mach-uniphier/cache_uniphier.c) is redundant.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/mach-uniphier/cache_uniphier.c

@@ -122,7 +122,5 @@ void v7_outer_cache_disable(void)
 
 void enable_caches(void)
 {
-#ifndef CONFIG_SYS_DCACHE_OFF
 	dcache_enable();
-#endif
 }