qcacld-3.0: Remove limContinueChannelLearn() prototype

The current version of the driver does not have an implementation of
limContinueChannelLearn(), so remove the obsolete prototype.

Change-Id: Ifaa8b174cc337b2a279a58901e1215a275a87e89
CRs-Fixed: 2369214

core/mac/src/pe/lim/lim_types.h

@@ -770,7 +770,6 @@ void lim_covert_channel_scan_type(struct mac_context *mac, uint8_t channelNum,
 				  bool passiveToActive);
 void lim_set_dfs_channel_list(struct mac_context *mac, uint8_t channelNum,
 			      tSirDFSChannelList *dfsChannelList);
-void limContinueChannelLearn(struct mac_context *);
 QDF_STATUS lim_sta_send_down_link(join_params *param);
 
 #ifdef WLAN_FEATURE_11W