editor: remove the "zoom in/zoom out" hack; it didn't work, and in fact broke switching to split screen and maintaining position.
editor: remove the "zoom in/zoom out" hack; it didn't work, and in fact broke switching to split screen and maintaining position.

DrXyzzy/smc,DrXyzzy/smc,sagemathinc/smc,DrXyzzy/smc,tscholl2/smc,tscholl2/smc,tscholl2/smc,DrXyzzy/smc,sagemathinc/smc,tscholl2/smc,sagemathinc/smc,sagemathinc/smc,tscholl2/smc