Remove NaCl file from ppapi_geturl test.

ppapi/native_client/tests/ppapi_geturl/build.scons

 # -*- python -*-
 # Copyright (c) 2011 The Native Client Authors.  All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # A way to build the nexe as a trusted plugin to validate directly
 # against Chrome on Linux using
 # --register-pepper-plugins="/path/to/libppapi_geturl.so;application/x-nacl"
 # http://localhost:5103/scons-out/nacl-x86-../staging/ppapi_geturl.html
 
 Import('env')
 
 if env.Bit('linux'):
   env['COMPONENT_STATIC'] = False  # Build a .so, not a .a
 
   sources = [ 'module.cc',
-              # This allow us to verify that the code builds before
-              # untrusted nacl_file is fully functioning.
-              # However, main() won't be called when we loaded the trusted
-              # plugin as a dll.
-              'nacl_file_main.cc',
               'ppapi_geturl.cc',
               'url_load_request.cc' ]
 
   libs = [ 'ppapi_cpp',
            'imc',
            'gio',
            'pthread' ]
 
   ppapi_geturl = env.ComponentLibrary('ppapi_geturl',
                                       sources,
                                       EXTRA_LIBS=libs,
                                       no_import_lib=True)