recipes: remove recipes using or depending on qt4 bbclasses or recipes

* anki is removed because it runtime depends on python-pyqt, other
  recipes are inheriting one of bbclasses removed from oe-core in:
  commit cb89d2b25b4edb1241bc5426a69a6bc44df9be2c
  Author: Alexander Kanavin <alexander.kanavin@linux.intel.com>
  Date:   Fri Nov 27 15:48:20 2015 +0200

      qt4: remove recipes and classes
* if you're still using one of these recipes add it to meta-qt4 layer

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>