Remove unused functions


git-svn-id: http://cantata.googlecode.com/svn/trunk@5359 b1e49159-3266-923f-9c3e-04f16369770a
Fix time slider colour
BUG: 542


git-svn-id: http://cantata.googlecode.com/svn/trunk@5360 b1e49159-3266-923f-9c3e-04f16369770a