rollback of thumbtrack weak/strong diff
rollback of thumbtrack weak/strong diff

Summary: This reverts commit 43123a40838a520ba1aac0d31a6cf593f839e038.

Test Plan: revert-hammer

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Eccelor/material-components-ios,sigito/material-components-ios,willlarche/material-components-ios,brianjmoore/material-components-ios,randallli/material-components-ios,material-components/material-components-ios,sigito/material-components-ios,brianjmoore/material-components-ios,material-components/material-components-ios,sigito/material-components-ios,willlarche/material-components-ios,material-components/material-components-ios,willlarche/material-components-ios,chriscox/material-components-ios,sigito/material-components-ios,Eccelor/material-components-ios,samnm/material-components-ios,willlarche/material-components-ios,randallli/material-components-ios,brianjmoore/material-components-ios,material-components/material-components-ios,samnm/material-components-ios,chriscox/material-components-ios,randallli/material-components-ios,willlarche/material-components-ios,chriscox/material-components-ios,brianjmoore/material-components-ios,randallli/material-components-ios,samnm/material-components-ios,randallli/material-components-ios,sigito/material-components-ios,chriscox/material-components-ios,chriscox/material-components-ios,material-components/material-components-ios,brianjmoore/material-components-ios,Eccelor/material-components-ios,randallli/material-components-ios,samnm/material-components-ios,Eccelor/material-components-ios,Eccelor/material-components-ios,samnm/material-components-ios