Revert "ar71xx: override cpu_has_mmips feature"

This reverts r37477. A generic patch is used to fix
this globally, so revert the ar71xx specific change.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 37480

target/linux/ar71xx/patches-3.10/220-add_cpu_feature_overrides.patch

@@ -1,15 +1,14 @@
 --- a/arch/mips/include/asm/mach-ath79/cpu-feature-overrides.h
 +++ b/arch/mips/include/asm/mach-ath79/cpu-feature-overrides.h
-@@ -36,6 +36,8 @@
+@@ -36,6 +36,7 @@
  #define cpu_has_mdmx		0
  #define cpu_has_mips3d		0
  #define cpu_has_smartmips	0
 +#define cpu_has_rixi		0
-+#define cpu_has_mmips		0
  
  #define cpu_has_mips32r1	1
  #define cpu_has_mips32r2	1
-@@ -45,6 +47,7 @@
+@@ -45,6 +46,7 @@
  #define cpu_has_dsp		0
  #define cpu_has_dsp2		0
  #define cpu_has_mipsmt		0
@@ -17,7 +16,7 @@
  
  #define cpu_has_64bits		0
  #define cpu_has_64bit_zero_reg	0
-@@ -53,5 +56,9 @@
+@@ -53,5 +55,9 @@
  
  #define cpu_dcache_line_size()	32
  #define cpu_icache_line_size()	32