Revert "Don't run tests on Janky CI"

This reverts commit b5b2df8e6cc23217cc56c87139af27cacf71caee.

script/cibuild

@@ -32,8 +32,7 @@ LINUX_DEPS_ARM = [
 def main():
   os.environ['CI'] = '1'
 
-  is_janky = os.environ.has_key('JANKY_SHA1')
-  if is_janky:
+  if os.environ.has_key('JANKY_SHA1'):
     setup_nodenv()
 
   # Ignore the CXX and CC env in CI.
@@ -89,9 +88,7 @@ def main():
     run_script('upload.py')
   else:
     run_script('build.py', ['-c', 'D'])
-    if PLATFORM == 'win32' or \
-       (PLATFORM == 'darwin' and target_arch == 'x64') or \
-       (PLATFORM == 'linux' and not is_janky and target_arch == 'x64'):
+    if PLATFORM == 'win32' or target_arch == 'x64':
       run_script('test.py', ['--ci'])
       run_script('verify-ffmpeg.py')