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

mojo/python/system/mojo/tests/validation_util.pyx

Index: mojo/python/system/mojo/tests/validation_util.pyx
diff --git a/mojo/python/system/mojo/tests/validation_util.pyx b/mojo/python/system/mojo/tests/validation_util.pyx
deleted file mode 100644
index e7bdbcdd5546650f42d931e0b79f54e1c0631ee6..0000000000000000000000000000000000000000
--- a/mojo/python/system/mojo/tests/validation_util.pyx
+++ /dev/null
@@ -1,35 +0,0 @@
-# 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.
-
-# distutils: language = c++
-
-from libc.stdint cimport uint8_t
-from libcpp cimport bool
-from libcpp.string cimport string
-from libcpp.vector cimport vector
-
-cdef extern from "third_party/cython/python_export.h":
-  pass
-
-cdef extern from "mojo/public/cpp/bindings/tests/validation_test_input_parser.h":
-  cdef bool ParseValidationTestInput "mojo::test::ParseValidationTestInput"(
-      string input,
-      vector[uint8_t]* data,
-      size_t* num_handles,
-      string* error_message)
-
-class Data(object):
-  def __init__(self, data, num_handles, error_message):
-    self.data = data
-    self.num_handles = num_handles
-    self.error_message = error_message
-
-def ParseData(value):
-  cdef string value_as_string = value
-  cdef vector[uint8_t] data_as_vector
-  cdef size_t num_handles
-  cdef string error_message
-  ParseValidationTestInput(
-      value, &data_as_vector, &num_handles, &error_message)
-  return Data(bytearray(data_as_vector), num_handles, error_message)