Revert "[autotest] Disable testbed in test push before testbed is restored"

This reverts commit ff92802456f39d7b939b841318021d65e38f3ff6.

Change-Id: I49541bc19b2504e8bb3b3fd4619c1324722968f3
Reviewed-on: https://chromium-review.googlesource.com/447855
Tested-by: Dan Shi <dshi@google.com>
Trybot-Ready: Dan Shi <dshi@google.com>
Reviewed-by: Shuqian Zhao <shuqianz@chromium.org>
Commit-Queue: Dan Shi <dshi@google.com>
diff --git a/site_utils/test_push.py b/site_utils/test_push.py
index 490accb..2118c9e 100755
--- a/site_utils/test_push.py
+++ b/site_utils/test_push.py
@@ -611,8 +611,16 @@
         asynchronous_suite.daemon = True
         asynchronous_suite.start()
 
+        # Test suite for testbed
+        testbed_suite = multiprocessing.Process(
+                target=test_suite_wrapper,
+                args=(queue, TESTBED_SUITE, EXPECTED_TEST_RESULTS_TESTBED,
+                      arguments, False, False, True))
+        testbed_suite.daemon = use_daemon
+        testbed_suite.start()
+
         while (push_to_prod_suite.is_alive() or au_suite.is_alive() or
-               asynchronous_suite.is_alive()):
+               asynchronous_suite.is_alive() or testbed_suite.is_alive()):
             check_queue(queue)
             time.sleep(5)
 
@@ -621,6 +629,7 @@
         push_to_prod_suite.join()
         au_suite.join()
         asynchronous_suite.join()
+        testbed_suite.join()
 
         # All tests pass, push prod-next branch for UPDATED_REPOS.
         push_prod_next_branch(updated_repo_heads)