remove qt3 support definition and warning, which is not used anymore. noticed by Anders Lund.
remove qt3 support definition and warning, which is not used anymore. noticed by Anders Lund.

svn path=/trunk/KDE/kdelibs/kate/; revision=628035

hlamer/kate,sandsmark/kate,cmacq2/kate,DickJ/kate,hlamer/kate,hlamer/kate,hlamer/kate,jfmcarreira/kate,DickJ/kate,DickJ/kate,DickJ/kate,hlamer/kate,jfmcarreira/kate,jfmcarreira/kate,hlamer/kate,hlamer/kate,cmacq2/kate,cmacq2/kate,hlamer/kate,sandsmark/kate,hlamer/kate,sandsmark/kate,hlamer/kate,sandsmark/kate