bpf: get rid of DISABLE_BTF_ON_USER_BUILDS macro am: da723a059e am: 08e0de852e

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3226114

Change-Id: I47668a62352660a840871b74b51bd16d72a67742
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>