[Android] Remove dedicated presubmit for build/andorid/pylib/symbols/.

build/android/pylib/symbols/elf_symbolizer_unittest.py

 #!/usr/bin/env python
 # 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 functools
 import logging
 import os
-import sys
 import unittest
 
-sys.path.insert(0, os.path.dirname(__file__))
-import elf_symbolizer
-import mock_addr2line
+from pylib.symbols import elf_symbolizer
+from pylib.symbols import mock_addr2line
 
 
 _MOCK_A2L_PATH = os.path.join(os.path.dirname(mock_addr2line.__file__),
                               'mock_addr2line')
 _INCOMPLETE_MOCK_ADDR = 1024 * 1024
 _UNKNOWN_MOCK_ADDR = 2 * 1024 * 1024
 _INLINE_MOCK_ADDR = 3 * 1024 * 1024
 
 
 class ELFSymbolizerTest(unittest.TestCase):
@@ skipping 139 matching lines @@
       self.assertEqual(sym_info.inlined_by.inlined_by.name,
                        exp_name + '_outer')
 
     # Check against duplicate callbacks.
     self.assertNotIn(addr, self._resolved_addresses)
     self._resolved_addresses.add(addr)
 
 
 if __name__ == '__main__':
   unittest.main()