Remove the unused code to sync region highlight on scroll

Change-Id: Id779c25237584f90ab9132fe24f6cbade1b58da7
Reduce the title height by moving close button to same row

Change-Id: Id5af0c0bc5654f4ef7decf4712d8eb46ef70933c
Remove unused region filter reference

Change-Id: I130e03bb7ea8bf24e6681fdd8a329c25941ca035