Delete all references to GIT_MODE=True from build

scripts/slave/recipe_modules/recipe_tryjob/api.py

Index: scripts/slave/recipe_modules/recipe_tryjob/api.py
diff --git a/scripts/slave/recipe_modules/recipe_tryjob/api.py b/scripts/slave/recipe_modules/recipe_tryjob/api.py
index 40065835310eb7655171ee45aaca297ab3255ee5..165b0f34fdec6e4ab25fbfde7e86c05729fd147a 100644
--- a/scripts/slave/recipe_modules/recipe_tryjob/api.py
+++ b/scripts/slave/recipe_modules/recipe_tryjob/api.py
@@ -179,8 +179,7 @@ class RecipeTryjobApi(recipe_api.RecipeApi):
     # Not working yet, but maybe??
     #api.file.rmtree('clean old %s repo' % proj, checkout_path)
 
-    config = self.m.gclient.make_config(
-        GIT_MODE=True, CACHE_DIR=root_dir.join("__cache_dir"))
+    config = self.m.gclient.make_config(CACHE_DIR=root_dir.join("__cache_dir"))
     soln = config.solutions.add()
     soln.name = proj
     soln.url = proj_config['repo_url']
@@ -267,7 +266,7 @@ class RecipeTryjobApi(recipe_api.RecipeApi):
     root_dir = self.m.path['slave_build']
 
     # Needed to set up the infra checkout, for _python
-    self.m.gclient.set_config('infra', GIT_MODE=True)
+    self.m.gclient.set_config('infra')
     self.m.gclient.c.solutions[0].revision = 'origin/master'
     self.m.gclient.checkout()
     self.m.gclient.runhooks()