[NETD-TC#5] Clean up the relevant non-bpf codes for
FirewallControllerTest.

Delete TestReplaceAllowlistUidRule, TestReplaceDenylistUidRule and
TestDiscoverMaximumValidUid from test cases because they call the
function makeUidRules() which run non-bpf codes.

Change-Id: I7e423efc5e3a9885a15e1616a9b6e738ead1c146
4 files changed