Complete removal of the toolbar is coming as promised in v2.5 (hopefully a month or two, as there are major changes). I'm not sure what you mean by "print button" as that's not visible except in full screen view, which is a Google page not present in my plugin.
There is a known issue in 2.4.6 where hidden toolbar buttons in the viewer still are narrowly clickable even though the icons aren't visible. This is fixed in the next version as well, and I can send you a patch for the specific issue you're seeing with some clarification on which button you mean. You can contact me directly via the support link in your plugin list.