qcacld-3.0: Remove obsolete AH_BYTE_ORDER macro

Kbuild currently has conditional code that is used to set the macro
AH_BYTE_ORDER. But this macro is unused by the code, so remove it.

Change-Id: If694bdb492645eda5d314f7240e42677d9e4413d
CRs-Fixed: 2220921

Kbuild

@@ -2238,14 +2238,10 @@ endif
 
 #Endianess selection
 ifeq ($(CONFIG_LITTLE_ENDIAN), 1)
-AH_LITTLE_ENDIAN=1234
-CDEFINES += -DAH_BYTE_ORDER=$(AH_LITTLE_ENDIAN)
 CDEFINES += -DANI_LITTLE_BYTE_ENDIAN
 CDEFINES += -DANI_LITTLE_BIT_ENDIAN
 CDEFINES += -DDOT11F_LITTLE_ENDIAN_HOST
 else
-AH_BIG_ENDIAN=4321
-CDEFINES += -DAH_BYTE_ORDER=$(AH_BIG_ENDIAN)
 CDEFINES += -DANI_BIG_BYTE_ENDIAN
 CDEFINES += -DBIG_ENDIAN_HOST
 endif