Revert one change from Rev.1412.
Revert one change from Rev.1412.

It didn't seem to be necessary, and it might cause problems if foreignObject tool is not enabled.
bogdanmanate/svg-edit,DevHack/svg-edit,portablejim/svg-edit,Gisellameloni/svg-edit,muhadbk0/svg-edit,portablejim/svg-edit,kimoa/svg-edit,muhadbk0/svg-edit,muhadbk0/svg-edit,rebootcode/svg-edit,hackintos/svg-edit,hackintos/svg-edit,fflying/svg-edit,DevHack/svg-edit,portablejim/svg-edit,bogdanmanate/svg-edit,bogdanmanate/svg-edit,likaiguo/svg-edit,hackintos/svg-edit,rebootcode/svg-edit,Gisellameloni/svg-edit,4xx/svg-edit,portablejim/svg-edit,kimoa/svg-edit,kimoa/svg-edit,muhadbk0/svg-edit,rebootcode/svg-edit,hackintos/svg-edit,rebootcode/svg-edit,4xx/svg-edit,likaiguo/svg-edit,bogdanmanate/svg-edit,DevHack/svg-edit,Gisellameloni/svg-edit,fflying/svg-edit,likaiguo/svg-edit,4xx/svg-edit,fflying/svg-edit,fflying/svg-edit,likaiguo/svg-edit,4xx/svg-edit,DevHack/svg-edit,kimoa/svg-edit,Gisellameloni/svg-edit