Remove vim headers 2nd round

We don't need to have the vim headers in each source files. So we have
already removed all of it at
 Change-Id: I43703e2289212389c7841f44691ae7849ed1f505
However, some files still have it now because of the patch time lag.
Maybe, we should have a hacking rule for this. But it's out of scope
here.

Change-Id: I8d09cb41ad633719857973a3ea228cd8dd3a9270
Closes-Bug: #1229324

tempest/api/compute/floating_ips/base.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2014 OpenStack Foundation
 # All Rights Reserved.
 #

tempest/api/compute/security_groups/base.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2012 OpenStack Foundation
 # All Rights Reserved.
 #

tempest/api/identity/admin/v3/test_groups.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2013 IBM Corp.
 # All Rights Reserved.
 #

tempest/scenario/test_aggregates_basic_ops.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2013 IBM Corp.
 # All Rights Reserved.
 #