Skip the unnecessary attempt to retrieve the server side dynamic config for ConnectivityManagerTest. am: 93b3d29a89 am: 16ea430978

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3184321

Change-Id: I258d7c04eb6309c2fa5d527b40b3ee02f28df500
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>