Remove *Locked wording

Since tethering run in single thread without any synchronized lock,
remove "Locked" wording from the methods which the use lock before.

Bug: 162920185
Test: atest TetheringCoverageTest
Change-Id: Ia8c057800cab30cdcbacae4db2d706b6427e9861
Merged-In: Ia8c057800cab30cdcbacae4db2d706b6427e9861
1 file changed