Removed scrollView delegate.
Removed scrollView delegate.

Suninus/TOWebViewController,venj/TOWebViewController,jonesgithub/TOWebViewController,WeaponJ/TOWebViewController,metasmile/TOWebViewController,z8927623/TOWebViewController,Kevin775263419/TOWebViewController,liric28/TOWebViewController,sdonly/TOWebViewController,kevin0571/TOWebViewController,8fit/TOWebViewController