Revert "Set value as soon as a slider bar is touched, and always consume the OnDragStart event (fixes awkward slider bars inside scroll containers)"
Revert "Set value as soon as a slider bar is touched, and always consume the OnDragStart event (fixes awkward slider bars inside scroll containers)"

This reverts commit c7a9f6b10dcd42f5312f85e7df276fc194b614ff.

peppy/osu-framework,EVAST9919/osu-framework,DrabWeb/osu-framework,ppy/osu-framework,EVAST9919/osu-framework,default0/osu-framework,Tom94/osu-framework,ppy/osu-framework,DrabWeb/osu-framework,Nabile-Rahmani/osu-framework,smoogipooo/osu-framework,EVAST9919/osu-framework,EVAST9919/osu-framework,DrabWeb/osu-framework,Tom94/osu-framework,ppy/osu-framework,default0/osu-framework,smoogipooo/osu-framework,Nabile-Rahmani/osu-framework,peppy/osu-framework,ZLima12/osu-framework,ZLima12/osu-framework,peppy/osu-framework