Remove shebang line from ganeti.server.*

Some of then were forgotten.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: René Nussbaumer <rn@google.com>

lib/server/confd.py

-#!/usr/bin/python
+#
 #
 
 # Copyright (C) 2009, 2010 Google Inc.

lib/server/masterd.py

-#!/usr/bin/python
+#
 #
 
 # Copyright (C) 2006, 2007, 2010 Google Inc.

lib/server/noded.py

-#!/usr/bin/python
+#
 #
 
 # Copyright (C) 2006, 2007, 2010 Google Inc.

lib/server/rapi.py

-#!/usr/bin/python
+#
 #
 
 # Copyright (C) 2006, 2007, 2008, 2009, 2010 Google Inc.