qcacld-3.0: Disable fast path in ROME architecture

Fast path is not supported in ROME, remove CONFIG_WLAN_FASTPATH
from qca6174_defconfig

Change-Id: I3606abfc6f375852159a9d94345e165fbe4d06c6
CRs-Fixed: 2428550

configs/qca6174_defconfig

@@ -192,11 +192,6 @@ ifneq ($(CONFIG_ROME_IF),sdio)
 	#Flag to enable SAE
 	CONFIG_WLAN_FEATURE_SAE := y
 
-	#Flag to enable Fast Path feature
-	ifneq ($(CONFIG_LITHIUM), y)
-		CONFIG_WLAN_FASTPATH := y
-	endif
-
 	# Flag to enable NAPI
 	CONFIG_WLAN_NAPI := y
 	CONFIG_WLAN_NAPI_DEBUG := n