cronet import: Remove //components/grpc_support from import am: 82104369dd am: 10b02277af

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2499915

Change-Id: I5210d33f81647f814fb7c6a66fc41187703b25d0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>