qcacld-3.0: Resolve compilation error for FEATURE_WLAN_ESE

If FEATURE_WLAN_ESE is disable, there is a compilation error.

Remove the definition of hdd_wmm_inactivity_timer_cb and
hdd_wmm_disable_inactivity_timer if FEATURE_WLAN_ESE is disabled
as these apis are not getting used anywhere.

Change-Id: I2c236f63429bdc738be9ccb06f9671b694fd9a5d
CRs-Fixed: 2238180

core/hdd/src/wlan_hdd_wmm.c

@@ -460,17 +460,6 @@ hdd_wmm_disable_inactivity_timer(struct hdd_wmm_qos_context *pQosContext)
 }
 #else
 
-static void hdd_wmm_inactivity_timer_cb(void *user_data)
-{
-}
-
-static QDF_STATUS
-hdd_wmm_enable_inactivity_timer(struct hdd_wmm_qos_context *pQosContext,
-				uint32_t inactivity_time)
-{
-	return QDF_STATUS_SUCCESS;
-}
-
 static QDF_STATUS
 hdd_wmm_disable_inactivity_timer(struct hdd_wmm_qos_context *pQosContext)
 {