git-cl: Remove GetIsGerrit.

It's always true.

Change-Id: I96a53c032de705724e61c64ee37e9a14b596cbd5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2113250Reviewed-by: Josip Sokcevic <sokcevic@google.com>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>

git_cl.py

@@ -832,12 +832,6 @@ class Settings(object):
   def GetDefaultCCList(self):
     return self._GetConfig('rietveld.cc')
 
-  def GetIsGerrit(self):
-    """Returns True if this repo is associated with Gerrit."""
-    if self.is_gerrit is None:
-      self.is_gerrit = self._GetConfig('gerrit.host').lower() == 'true'
-    return self.is_gerrit
-
   def GetSquashGerritUploads(self):
     """Returns True if uploads to Gerrit should be squashed by default."""
     if self.squash_gerrit_uploads is None:
@@ -3023,8 +3017,6 @@ def DownloadGerritHook(force):
   Args:
     force: True to update hooks. False to install hooks if not present.
   """
-  if not settings.GetIsGerrit():
-    return
   src = 'https://gerrit-review.googlesource.com/tools/hooks/commit-msg'
   dst = os.path.join(settings.GetRoot(), '.git', 'hooks', 'commit-msg')
   if not os.access(dst, os.X_OK):
@@ -4302,9 +4294,6 @@ def CMDupload(parser, args):
   if options.use_commit_queue:
     options.send_mail = True
 
-  # For sanity of test expectations, do this otherwise lazy-loading *now*.
-  settings.GetIsGerrit()
-
   cl = Changelist()
   # Warm change details cache now to avoid RPCs later, reducing latency for
   # developers.

tests/git_cl_test.py

@@ -3453,7 +3453,6 @@ class CMDUploadTestCase(CMDTestCaseBase):
     mock.patch('git_cl._fetch_tryjobs').start()
     mock.patch('git_cl._trigger_tryjobs', return_value={}).start()
     mock.patch('git_cl.Changelist.CMDUpload', return_value=0).start()
-    mock.patch('git_cl.Settings.GetIsGerrit', return_value=True).start()
     self.addCleanup(mock.patch.stopall)
 
   def testWarmUpChangeDetailCache(self):