LatinIME: clean up sw768dp qwerty layout

Just a small cosmetic fix

Change-Id: I09fedf201bdf7a41884e73b8e0cd8be13d4c8a21
Fix LatinIME crashing if JNI lib without gesture support is installed.

Change-Id: I60292a8e272d484e1d4a4407ddceeac863d6d70e