Revert "[popup] Add option "positionTo""
Revert "[popup] Add option "positionTo""

This reverts commit a1c00bf1a44d89e5e487774da191b187be1e87bd.

arschmitz/jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/uglymongrel-jquery-mobile,npmcomponent/cbou-jquery-mobile,startxfr/jquery-mobile,arschmitz/jquery-mobile,npmcomponent/cbou-jquery-mobile,startxfr/jquery-mobile,arschmitz/uglymongrel-jquery-mobile,hinaloe/jqm-demo-ja,npmcomponent/cbou-jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/jquery-mobile,arschmitz/uglymongrel-jquery-mobile,startxfr/jquery-mobile