Revert "Switch CQ to use blink trybots."

projects.py

Index: projects.py
diff --git a/projects.py b/projects.py
index 7c3220397abd362c9626d30faea36a274b9bb594..2204246dbeef4513631aa2d25aa577fe8c52e9d8 100644
--- a/projects.py
+++ b/projects.py
@@ -204,9 +204,9 @@ def _gen_blink(user, root_dir, rietveld_obj, no_try):
       'mac_layout':       compile_only,
       'win_layout':       compile_only,
 
-      'linux_blink_rel': blink_tests,
-      'mac_blink_rel':   blink_tests,
-      'win_blink_rel':   blink_tests,
+      'linux_layout_rel': blink_tests,
+      'mac_layout_rel':   blink_tests,
+      'win_layout_rel':   blink_tests,
     }
 
     step_verifiers += [