#4790: revert r37924, this introduces new bug (see https://forum.geogebra.org/viewtopic.php?f=8&t=37789)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38030 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #4798: really the problem was unimplemented focus setting

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38031 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e