Delete all references to GIT_MODE=True from build

scripts/slave/recipe_modules/chromium_android/api.py

Index: scripts/slave/recipe_modules/chromium_android/api.py
diff --git a/scripts/slave/recipe_modules/chromium_android/api.py b/scripts/slave/recipe_modules/chromium_android/api.py
index 07e7ac96966cd5f631fc997b6c37dfe26c2def1b..c471a87ae38ba3dd058a633e94db9517a65b4b7d 100644
--- a/scripts/slave/recipe_modules/chromium_android/api.py
+++ b/scripts/slave/recipe_modules/chromium_android/api.py
@@ -102,10 +102,10 @@ class AndroidApi(recipe_api.RecipeApi):
     # TODO(sivachandra): Move the setting of the gclient spec below to an
     # internal config extension when they are supported by the recipe system.
     if use_git_cache:
-      spec = self.m.gclient.make_config(gclient_config, GIT_MODE=True)
+      spec = self.m.gclient.make_config(gclient_config)
     else:
       spec = self.m.gclient.make_config(gclient_config,
-                                        CACHE_DIR=None, GIT_MODE=True)
+                                        CACHE_DIR=None)
     spec.target_os = ['android']
     s = spec.solutions[0]
     s.name = self.c.deps_dir