qcacmn: init: Remove WLAN_TWT_CONV_SUPPORTED flag

TWT componentization code is converged. Remove WLAN_TWT_CONV_SUPPORTED,
leaving just WLAN_SUPPORT_TWT to enable the feature code.

Change-Id: Ic7f7b1dac43e78b454bab0267dd4a58a56ab2c48
CRs-Fixed: 3285181

init_deinit/dispatcher/src/dispatcher_init_deinit.c

@@ -705,7 +705,7 @@ static QDF_STATUS dispatcher_dfs_psoc_disable(struct wlan_objmgr_psoc *psoc)
 }
 #endif
 
-#if defined(WLAN_SUPPORT_TWT) && defined(WLAN_TWT_CONV_SUPPORTED)
+#if defined(WLAN_SUPPORT_TWT)
 static QDF_STATUS dispatcher_twt_psoc_enable(struct wlan_objmgr_psoc *psoc)
 {
 	return twt_psoc_enable(psoc);