qcacld-3.0: Remove ucfg_pmo_vdev_update_dp_handle() stub

Change I1f668fff633a5e5cdfc478e7f619e9600930b333 ("qcacld-3.0: Use wma
callback to get vdev dp handle") removed the implementation of
pmo_ucfg_vdev_update_dp_handle(), but left behind the stub
implementation for use when PMO is disabled. This stub, since renamed
to ucfg_pmo_vdev_update_dp_handle(), is unused, so remove it.

Change-Id: I042ea081a4c2e5288963f7882129d06667e5b707
CRs-Fixed: 2380780

components/pmo/dispatcher/inc/wlan_pmo_ucfg_api.h

@@ -1342,13 +1342,6 @@ ucfg_pmo_psoc_update_dp_handle(
 {
 }
 
-static inline void
-ucfg_pmo_vdev_update_dp_handle(
-		struct wlan_objmgr_vdev *vdev,
-		void *dp_handle)
-{
-}
-
 static inline void
 ucfg_pmo_psoc_update_htc_handle(
 		struct wlan_objmgr_psoc *psoc,