WifiPermissionsUtil: remove unused call

Remove the (now) unused - and incorrectly checked,
enforceTetherChangePermission call.

Bug: 66917593
Test: frameworks/opt/net/wifi/tests/wifitests/runtests.sh
Test: frameworks/base/wifi/tests/runtests.sh
Change-Id: Iceae8fd228109623eb584189516fc729df6319f2
1 file changed