Remove Cronet am: 21b36398ab

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Cronet/+/15072300

Change-Id: I1502448fb162da35bf3f298564ac51466fe0be0e
tree: 4b825dc642cb6eb9a060e54bf8d69288fbee4904

This tree is empty.