[AETHER-1752]: Make aether-monitoring repo Member-Only license compliant

Change-Id: I5c17a2d9a1ab11bf871a66b59347d03a3186fb82
diff --git a/edge-monitoring-server/Makefile b/edge-monitoring-server/Makefile
index 9cbcef0..dee8688 100644
--- a/edge-monitoring-server/Makefile
+++ b/edge-monitoring-server/Makefile
@@ -1,16 +1,6 @@
 # Copyright 2020-present Open Networking Foundation
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0
 
 # Secret iCal URL for ACE downtime calendar
 SECRET_ICAL_URL ?=