Remove ALL Docker File Versions

Issue-ID: CPS-1095
Signed-off-by: sourabh_sourabh <sourabh.sourabh@est.tech>
Change-Id: I11790e271ec784dfa9dbdaea497d50e95f884600
diff --git a/csit/plans/cps/pnfsim/docker-compose.yml b/csit/plans/cps/pnfsim/docker-compose.yml
index 568f98f..e0f21a2 100644
--- a/csit/plans/cps/pnfsim/docker-compose.yml
+++ b/csit/plans/cps/pnfsim/docker-compose.yml
@@ -1,5 +1,5 @@
 # ============LICENSE_START=======================================================
-# Copyright (C) 2021 Nordix Foundation
+# Modifications Copyright (C) 2022 Nordix Foundation
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,8 +14,6 @@
 # limitations under the License.
 # ============LICENSE_END=========================================================
 
-version: '3'
-
 services:
   netconf-pnp-simulator:
     image: nexus3.onap.org:10001/onap/integration/simulators/netconf-pnp-simulator:2.8.6
diff --git a/csit/plans/cps/sdnc/docker-compose.yml b/csit/plans/cps/sdnc/docker-compose.yml
index 30d8207..29e8293 100644
--- a/csit/plans/cps/sdnc/docker-compose.yml
+++ b/csit/plans/cps/sdnc/docker-compose.yml
@@ -1,5 +1,5 @@
 # ============LICENSE_START=======================================================
-# Copyright (C) 2021-2022 Nordix Foundation
+# Modifications Copyright (C) 2022 Nordix Foundation
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,8 +14,6 @@
 # limitations under the License.
 # ============LICENSE_END=========================================================
 
-version: '3'
-
 services:
   mariadb:
     image: mariadb:10.5
diff --git a/docker-compose/docker-compose.yml b/docker-compose/docker-compose.yml
index 63aeca2..b7d641c 100644
--- a/docker-compose/docker-compose.yml
+++ b/docker-compose/docker-compose.yml
@@ -1,7 +1,7 @@
 # ============LICENSE_START=======================================================
 # Copyright (c) 2020 Pantheon.tech.
 # Modifications Copyright (C) 2021 Bell Canada.
-# Modifications Copyright (C) 2021-2022 Nordix Foundation.
+# Modifications Copyright (C) 2022 Nordix Foundation.
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -16,8 +16,6 @@
 # limitations under the License.
 # ============LICENSE_END=========================================================
 
-version: '3.8'
-
 services:
 
   ### docker-compose up -d -> run ALL services ###