Revert "Trebuchet : Fix overscroll overlay issue"

This reverts commit f29645157ef778f245bc5b4f198c85ce585bb482.

Change-Id: Iad637a25ab51ee60bf7a8b3a040abe7d5b709789
Trebuchet : Only reset overscrolled child

Change-Id: Ief240c7fbbe296673ff4124cd4d463c9ba65f764