Move targetSDK-specific tests to SELinux CTS.

SwitchTargetSdkVersionRule is not supported for use with SELinux
target-SDK checks. Moving this specific test into
cts/tests/tests/selinux downstream (Change-Id
I9b9ba084dd1c58d01b97f807d7e0122f059c5121), which will be
cherrypicked into AOSP as soon as SELinux kernel changes trickled
down.

Change-Id: I50b5524c0903b2b72f8de14ba4f321f2f894f397
Bug: 141455849
Fix: 149544376
Test: atest NetworkInterfaceTest
1 file changed