Remove {linux|android}_use_tcmalloc and switch to use_allocator in Chromium.

remoting/remoting_test.gypi

 # 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.
 
 {
   'targets': [
     # Remoting unit tests
     {
       'target_name': 'remoting_unittests',
       'type': '<(gtest_target_type)',
@@ skipping 212 matching lines @@
             'remoting_host_setup_base',
             'remoting_it2me_host_static',
             'remoting_native_messaging_base',
           ],
           'sources/': [
             ['exclude', '^codec/'],
             ['exclude', '^host/'],
             ['exclude', '^base/resources_unittest\\.cc$'],
           ]
         }],
-        # TODO(dmikurube): Kill linux_use_tcmalloc. http://crbug.com/345554
-        [ 'OS == "linux" and ((use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and linux_use_tcmalloc==1))', {
+        [ 'OS == "linux" and use_allocator!="none"', {
           'dependencies': [
             '../base/allocator/allocator.gyp:allocator',
           ],
         }],
       ],  # end of 'conditions'
     },  # end of target 'remoting_unittests'
   ],  # end of targets
 }