[SB] Remove old InternetTile.java.

InternetTileNewImpl is its replacement and it's been launched for years,
so we can remove the old implementation.

Bug: 291315866
Flag: EXEMPT removing launched code
Test: manual: Verify Internet tile still works
Test: atest QSFactoryImplTest
Change-Id: Ie54c08a4e9ba7883dc34ca60706ccc886a5a6c6c