Do not destroy adb socket when it is running over TCP.

Bug: b/161861298
Bug: b/183177056
Test: atest android.net.cts.Ikev2VpnTest#testStartStopVpnProfileV4

Change-Id: I595c61bf0a08882a62aebec86db8ab2965fe6a57
Merged-In: I595c61bf0a08882a62aebec86db8ab2965fe6a57
(cherry picked from commit f3cfb3abcb6513bbaff71a5b91e15b06a5daa15b)
(cherry picked from commit 9d9f8e6bcdb69dae929c747dbfa04e6fb12fb4be)
1 file changed