Just use git refs for lkcr and lkgr

recipe_modules/gclient/config.py

Index: recipe_modules/gclient/config.py
diff --git a/recipe_modules/gclient/config.py b/recipe_modules/gclient/config.py
index 851dbb0578362e7c3916e11bd1309415b2bccecb..c4566689ebc225a4e3a6dbb995f9e8f71a33bddd 100644
--- a/recipe_modules/gclient/config.py
+++ b/recipe_modules/gclient/config.py
@@ -187,24 +187,12 @@ def chromium(c):
 
 @config_ctx(includes=['chromium'])
 def chromium_lkcr(c):
-  # TODO(phajdan.jr): Add git hashes for LKCR crbug.com/349277.
-  if c.GIT_MODE:
-    raise BadConf('Git has problems with safesync_url and LKCR, '
-                  'crbug.com/349277 crbug.com/109191')  # pragma: no cover
   s = c.solutions[0]
-  s.safesync_url = 'https://build.chromium.org/p/chromium/lkcr-status/lkgr'
-  # TODO(hinoka): Once lkcr exists and is a tag, it should just be lkcr
-  #               rather than origin/lkcr.
   s.revision = 'origin/lkcr'
 
 @config_ctx(includes=['chromium'])
 def chromium_lkgr(c):
   s = c.solutions[0]
-  safesync_url = 'https://chromium-status.appspot.com/lkgr'
-  if c.GIT_MODE:  # pragma: no cover
-    safesync_url = 'https://chromium-status.appspot.com/git-lkgr'
-    raise BadConf('Git has problems with safesync_url, crbug.com/109191.')
-  s.safesync_url = safesync_url
   s.revision = 'origin/lkgr'
 
 @config_ctx(includes=['chromium_bare'])
@@ -689,4 +677,4 @@ def chromedriver(c):
   """Add Selenium Java tests to the gclient solution."""
   c.solutions[0].custom_deps[
       'src/chrome/test/chromedriver/third_party/java_tests'] = (
-          ChromiumGitURL(c, 'chromium', 'deps', 'webdriver'))
+          ChromiumGitURL(c, 'chromium', 'deps', 'webdriver'))