Actually delete the nacl_file_main.* files

Remove an outdated comment from nacl.scons
Left over from a previous CL - apparently commit queue ignores svn 'D' files.
Will submit this CL via gcl...
BUG=none
TEST=ppapi_geturl
Review URL: http://codereview.chromium.org/8922019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@114119 0039d316-1c4b-4281-b951-d872f2087c98

ppapi/native_client/tests/ppapi_geturl/nacl.scons

@@ -3,8 +3,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-# This is a C PPAPI-based version of ../npapi_geturl.
-#
 # ppapi_geturl.html - test driver that loads the nexe and scripts it
 # ppapi_geturl_success.html - to be url-loaded and displayed w/n driver html
 #