Let admin can delete user's environment

Now admin can see the list of user's environments,
but can't delete them. There will gives the 403 Forbidden.
This patch let admin can delete user's environment.

Change-Id: Ic208ae586427bb3eb9ce4749870158ccdfb09d76
Closes-Bug: #1654103

murano/utils.py

@@ -40,7 +40,8 @@ def check_env(request, environment_id):
         raise exc.HTTPNotFound(explanation=msg)
 
     if hasattr(request, 'context'):
-        if environment.tenant_id != request.context.tenant:
+        if (environment.tenant_id != request.context.tenant and not
+                request.context.is_admin):
             msg = _('User is not authorized to access'
                     ' these tenant resources')
             LOG.error(msg)

releasenotes/notes/bug-1654103-f39ee721d1b90b68.yaml

@@ -0,0 +1,4 @@
+---
+fixes:
+  - |
+    Now admin can delete user's environments.