Use the environment model template from Mirantis/environment-template

- remove environment/environment-template folder. Use the repo [1]
- move environment/environment_inventory to the repo [1]
  to the inventory_examples

[1] https://github.com/Mirantis/environment-template

Change-Id: I1cc70f864343fdebfe54cc66d251a9133dce9e88
diff --git a/tcp_tests/environment/.keep b/tcp_tests/environment/.keep
new file mode 100644
index 0000000..89260ab
--- /dev/null
+++ b/tcp_tests/environment/.keep
@@ -0,0 +1,4 @@
+This 'environment' folder should be removed after
+refactoring the template physical_mcp11_ovs_dpdk to
+generate the 'environment' model instead of use
+pre-defined 'lab03_ovs_dpdk'.
\ No newline at end of file