Remove libnetdbpf_test from TEST_MAPPING am: 2f7e47837a am: e32ae03ccc am: 5dc8677453

Original change: https://android-review.googlesource.com/c/platform/external/android-clat/+/1956086

Change-Id: I0bb33a24ba51560e3c2fb03db5d7e36d10ef224b