Revert "Improve scroll responsiveness."

This reverts commit ce6b2513bcfb257cfdeb604060708b3833ccb65e

Change-Id: Id1b264c9f4417a2c3f22f3821f446fb9211f4616
Merge "Revert "Improve scroll responsiveness."" into cm-10.1
Merge remote-tracking branch 'cm/cm-10.1' into cm-10.1