Delete all references to GIT_MODE=True from build

scripts/slave/recipes/chromium.chromedriver.recipe_autogen.py

Index: scripts/slave/recipes/chromium.chromedriver.recipe_autogen.py
diff --git a/scripts/slave/recipes/chromium.chromedriver.recipe_autogen.py b/scripts/slave/recipes/chromium.chromedriver.recipe_autogen.py
index 4e66a9a87d597d1c9d56579b6320cfb490d1f00f..7f49f55b87404e01ad02b450441a4c8053f457af 100644
--- a/scripts/slave/recipes/chromium.chromedriver.recipe_autogen.py
+++ b/scripts/slave/recipes/chromium.chromedriver.recipe_autogen.py
@@ -17,7 +17,7 @@ DEPS = [
 def Linux32_steps(api):
   # update scripts step; implicitly run by recipe engine.
   # bot_update step
-  src_cfg = api.gclient.make_config(GIT_MODE=True)
+  src_cfg = api.gclient.make_config()
   soln = src_cfg.solutions.add()
   soln.name = "src"
   soln.url = "https://chromium.googlesource.com/chromium/src.git"
@@ -93,7 +93,7 @@ def Linux32_steps(api):
 def Mac_10_6_steps(api):
   # update scripts step; implicitly run by recipe engine.
   # bot_update step
-  src_cfg = api.gclient.make_config(GIT_MODE=True)
+  src_cfg = api.gclient.make_config()
   soln = src_cfg.solutions.add()
   soln.name = "src"
   soln.url = "https://chromium.googlesource.com/chromium/src.git"
@@ -171,7 +171,7 @@ def Win7_steps(api):
   api.python("taskkill", api.path["build"].join("scripts", "slave",
     "kill_processes.py"))
   # bot_update step
-  src_cfg = api.gclient.make_config(GIT_MODE=True)
+  src_cfg = api.gclient.make_config()
   soln = src_cfg.solutions.add()
   soln.name = "src"
   soln.url = "https://chromium.googlesource.com/chromium/src.git"
@@ -244,7 +244,7 @@ def Win7_steps(api):
 def Linux_steps(api):
   # update scripts step; implicitly run by recipe engine.
   # bot_update step
-  src_cfg = api.gclient.make_config(GIT_MODE=True)
+  src_cfg = api.gclient.make_config()
   soln = src_cfg.solutions.add()
   soln.name = "src"
   soln.url = "https://chromium.googlesource.com/chromium/src.git"