Bug 1620744 - Convert prepare_tlds.py to py3; r=firefox-build-system-reviewers,rstewart

Differential Revision: https://phabricator.services.mozilla.com/D65851

--HG--
extra : moz-landing-system : lando

netwerk/dns/prepare_tlds.py

@@ -126,8 +126,6 @@ def main(output, effective_tld_filename, output_format="cxx"):
 
   """ words_to_bin() returns a bytes while words_to_cxx() returns string """
   if output_format == "bin":
-    if sys.version_info[0] >= 3:
-      output = output.buffer
     output.write(words_to_bin(dafsa_words()))
   else:
     output.write(words_to_cxx(dafsa_words()))

netwerk/dns/tests/unit/data/moz.build

@@ -10,6 +10,5 @@ fake_remote_dafsa = GENERATED_FILES['fake_remote_dafsa.bin']
 fake_remote_dafsa.script = '../../../prepare_tlds.py'
 fake_remote_dafsa.inputs = ['fake_public_suffix_list.dat']
 fake_remote_dafsa.flags = ['bin']
-fake_remote_dafsa.py2 = True
 
 TEST_HARNESS_FILES.xpcshell.netwerk.dns.tests.unit.data += ['!fake_remote_dafsa.bin']