Close sockets from ConnectivityService#setFirewallChainEnabled

And replace netd.socketDestroy by Java implementation

Bug: 270298713
Test: atest FrameworksNetTests CtsNetTestCases
(cherry picked from https://android-review.googlesource.com/q/commit:d44a33adb958d973bb15c74635be6c15dbf8af88)
Merged-In: I0e200247ca010f9649254eeaac02740bd2bfdb21
Change-Id: I0e200247ca010f9649254eeaac02740bd2bfdb21
4 files changed