qcacld-3.0: Remove obsolete NAPIER_CODE feature flag

NAPIER_CODE feature flag is no longer needed and hence
remove it.

Change-Id: Ide612ca55722d8defbee6d37a81ad55ffd0fba5f
CRs-Fixed: 2006308

Kbuild

@@ -1418,10 +1418,6 @@ ifeq ($(CONFIG_WLAN_FEATURE_11W),y)
 CDEFINES += -DWLAN_FEATURE_11W
 endif
 
-#common scheduler changes are enabled using this macro
-#This needs to be cleaned up once WIN and MCL changes ready
-CDEFINES += -DNAPIER_CODE
-
 ifeq ($(CONFIG_QCA_TXDESC_SANITY_CHECKS), 1)
 CDEFINES += -DQCA_SUPPORT_TXDESC_SANITY_CHECKS
 endif