Remove patch which has been rolled in from libxml2 upstream.

third_party/libxml/chromium/roll.py

 #!/usr/bin/env python
 
 # Copyright 2017 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 argparse
 import os
 import os.path
 import shutil
@@ skipping 57 matching lines @@
 #    d. third_party/libxml/chromium/roll.py --mac
 #    e. Make and commit any final changes to README.chromium, BUILD.gn, etc.
 #    f. Complete the code review process as usual: git cl upload -d;
 #       git cl try-results; etc.
 
 PATCHES = [
     'chromium-issue-599427.patch',
     'chromium-issue-620679.patch',
     'chromium-issue-628581.patch',
     'chromium-issue-683629.patch',
-    'libxml2-2.9.4-security-CVE-2017-7375-xmlParsePEReference-xxe.patch',
     'libxml2-2.9.4-security-CVE-2017-7376-nanohttp-out-of-bounds-write.patch',
     'libxml2-2.9.4-security-xpath-nodetab-uaf.patch',
     'libxml2-2.9.4-xmlDumpElementContent-null-deref.patch',
     'chromium-issue-708434.patch',
 ]
 
 
 # See libxml2 configure.ac and win32/configure.js to learn what
 # options are available.
 
@@ skipping 248 matching lines @@
                     shell=True)
         finally:
             shutil.rmtree(temp_dir)
 
         with WorkingDir(THIRD_PARTY_LIBXML_SRC):
             # Put the version number is the README file
             sed_in_place('../README.chromium',
                          's/Version: .*$/Version: %s/' % commit)
 
             for patch in PATCHES:
-                subprocess.check_call('cat ../chromium/%s | patch -p1' % patch,
-                                      shell=True)
+                subprocess.check_call(
+                    'cat ../chromium/%s | patch -p1 --fuzz=0' % patch,
+                    shell=True)
 
             with WorkingDir('../linux'):
                 subprocess.check_call(
                     ['../src/autogen.sh'] + XML_CONFIGURE_OPTIONS)
                 check_copying(os.getcwd())
                 sed_in_place('config.h', 's/#define HAVE_RAND_R 1//')
 
             # Add *everything*
             with WorkingDir('../src'):
                 git('add', '*')
@@ skipping 72 matching lines @@
         libxml2_repo_path = os.path.abspath(libxml2_repo_path)
         roll_libxml_linux(src_dir, libxml2_repo_path)
     elif args.win32:
         roll_libxml_win32(src_dir)
     elif args.mac:
         roll_libxml_mac(src_dir)
 
 
 if __name__ == '__main__':
     main()