Backout bug 957768 for bustage.
Backout bug 957768 for bustage.

--HG--
branch : production
extra : transplant_source : %A0q%E6%C6%7E%82n%DC%84%7F%D38%1C%1FE%90%9A%A5d%84

kartikgupta0909/mozilla-mozharness,kartikgupta0909/gittest,mozilla/build-mozharness,mrrrgn/build-mozharness,escapewindow/mozharness,armenzg/build-mozharness,lissyx/build-mozharness,walac/build-mozharness,kartikgupta0909/build-mozharness,mrrrgn/build-mozharness,simar7/build-mozharness,escapewindow/mozharness,kartikgupta0909/mozilla-mozharness,kartikgupta0909/gittest,walac/build-mozharness,lissyx/build-mozharness,simar7/build-mozharness,armenzg/build-mozharness,kartikgupta0909/build-mozharness,mozilla/build-mozharness