qcacld-3.0: Remove enum tdls_concerned_external_events

Change Ia860904685fc4783453491effa4518777c7406d0 ("qcacld-3.0:
TDLS: remove legacy interfaces") removed the last reference to
enum tdls_concerned_external_events. Since this enum is now unused,
remove it.

Change-Id: Ie21072a45d7c083d4f0f661906ca9cabb17a6178
CRs-Fixed: 2370025

core/hdd/inc/wlan_hdd_tdls.h

@@ -25,16 +25,6 @@
 
 struct hdd_context;
 
-/**
- * enum tdls_concerned_external_events - External events that affect TDLS
- * @P2P_ROC_START: P2P remain on channel starts
- * @P2P_ROC_END: P2P remain on channel ends
- */
-enum tdls_concerned_external_events {
-	P2P_ROC_START,
-	P2P_ROC_END,
-};
-
 #ifdef FEATURE_WLAN_TDLS
 
 /* Bit mask flag for tdls_option to FW */