Delete empty mojo python package, and prefix all python packages with mojo_

mojo/public/tools/bindings/generators/python_templates/module.py.tmpl

 {% from "module_macros.tmpl" import enum_values %}
 {% from "module_macros.tmpl" import struct_descriptor %}
 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import mojo.bindings.descriptor as _descriptor
-import mojo.bindings.reflection as _reflection
+import mojo_bindings.descriptor as _descriptor
+import mojo_bindings.reflection as _reflection
 {% if imports %}
 
 {% for import in imports %}
 import {{import.python_module}}
 {% endfor %}
 {% endif %}
 {#--- Constants #}
 {% if module.constants %}
 
 {% for constant in module.constants %}
@@ skipping 29 matching lines @@
         'parameters': {{struct_descriptor(request_struct)|indent(8)}},
 {%    if method.response_parameters != None %}
 {%      set response_struct = method|response_struct_from_method %}
         'responses': {{struct_descriptor(response_struct)|indent(8)}},
 {%    endif %}
       },
 {%  endfor %}
     ],
   }
 {% endfor %}