qcacld-3.0: Fix Datapath kernel checkpatch warnings in ol_tx_send.h

Fix Datapath kernel checkpatch warnings in ol_tx_send.h

Change-Id: I4a4abea0913eaba7bab8b50faa6330f930f1981a
CRs-Fixed: 2032874

core/dp/txrx/ol_tx_send.h

@@ -39,7 +39,6 @@
 
 static inline void ol_tx_discard_target_frms(ol_txrx_pdev_handle pdev)
 {
-	return;
 }
 #else