qcacld-3.0: Remove obsolete hdd_lro_init() stub

Change I15535827a03953231670d4138235c4876b16e045 ("qcacld-3.0: Add GRO
support for STA mode") removed the implementation of hdd_lro_init(),
but it failed to remove the inline stub implementation for use when
FEATURE_LRO was not enabled, so remove it now.

Change-Id: Ie835fdd08322c8968333e264d1228586261b5d59
CRs-Fixed: 2362716

core/hdd/inc/wlan_hdd_lro.h

@@ -61,11 +61,6 @@ QDF_STATUS hdd_lro_set_reset(struct hdd_context *hdd_ctx,
 int hdd_is_lro_enabled(struct hdd_context *hdd_ctx);
 
 #else
-static inline int hdd_lro_init(struct hdd_context *hdd_ctx)
-{
-	return 0;
-}
-
 static inline QDF_STATUS hdd_lro_rx(struct hdd_adapter *adapter,
 				    struct sk_buff *skb)
 {