da850evm: Remove CONFIG_SYS_xxCACHE_OFF defines

This patch removes the defines CONFIG_SYS_ICACHE_OFF,
CONFIG_SYS_DCACHE_OFF, and CONFIG_SYS_L2CACHE_OFF from the board
configuration. These defines are useless since cache is
anyway disabled for the entire architecture since commit
cba4b180.
Signed-off-by: NChristian Riesch <christian.riesch@omicron.at>
Cc: Tom Rini <trini@ti.com>

include/configs/da850evm.h

@@ -44,9 +44,6 @@
 #define CONFIG_SYS_HZ			1000
 #define CONFIG_SKIP_LOWLEVEL_INIT
 #define CONFIG_SYS_TEXT_BASE		0xc1080000
-#define CONFIG_SYS_ICACHE_OFF
-#define CONFIG_SYS_DCACHE_OFF
-#define CONFIG_SYS_L2CACHE_OFF
 
 /*
  * Memory Info