Restrict groups and users from changing domains

Similar to projects, we shouldn't allow users and groups to
change domains. The server side tosses up an error but osc
should restrict that behaviour in the first place.

Related-Bug: #1418384

Change-Id: I860291a5859c576021b18e35d1a12c32abfb6ca5

doc/source/command-objects/group.rst

@@ -151,7 +151,6 @@ Set group properties
 
     os group set
         [--name <name>]
-        [--domain <domain>]
         [--description <description>]
         <group>
 
@@ -159,10 +158,6 @@ Set group properties
 
     New group name
 
-.. option:: --domain <domain>
-
-    New domain to contain <group> (name or ID)
-
 .. option:: --description <description>
 
     New group description

doc/source/command-objects/user.rst

@@ -136,7 +136,6 @@ Set user properties
 
     os user set
         [--name <name>]
-        [--domain <domain>]
         [--project <project>]
         [--password <password>]
         [--email <email-address>]
@@ -148,12 +147,6 @@ Set user properties
 
     Set user name
 
-.. option:: --domain <domain>
-
-    Set default domain (name or ID)
-
-    .. versionadded:: 3
-
 .. option:: --project <project>
 
     Set default project (name or ID)