Revert "Open and close clat bpf map while clat is starting and stoping" am: b135921ed7

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2092304

Change-Id: Id5570149952ef685c37d63373d375839be8b7e52
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>