No-op code cleanup of TSMS#getCurrentSpellCheckerSubtype

This is one more no-op code clean up
TextServicesManagerService#getCurrentSpellCheckerSubtype.

There should be no behavior change.

Bug: 110275412
Test: Manually verified that spell checker still works
Change-Id: I2032d21dd3279904abc01182a85f370734e03667
1 file changed