Remove warnings about unused variables in code injection of TR functions.
Remove warnings about unused variables in code injection of TR functions.

Reviewed by Marcelo Lira <marcelo.lira@openbossa.org>

gbaty/pyside2,M4rtinK/pyside-android,gbaty/pyside2,enthought/pyside,RobinD42/pyside,IronManMark20/pyside2,pankajp/pyside,RobinD42/pyside,BadSingleton/pyside2,gbaty/pyside2,RobinD42/pyside,RobinD42/pyside,M4rtinK/pyside-bb10,pankajp/pyside,M4rtinK/pyside-android,M4rtinK/pyside-bb10,gbaty/pyside2,enthought/pyside,gbaty/pyside2,M4rtinK/pyside-bb10,IronManMark20/pyside2,enthought/pyside,M4rtinK/pyside-bb10,enthought/pyside,M4rtinK/pyside-android,qtproject/pyside-pyside,BadSingleton/pyside2,PySide/PySide,qtproject/pyside-pyside,IronManMark20/pyside2,M4rtinK/pyside-android,M4rtinK/pyside-android,PySide/PySide,RobinD42/pyside,qtproject/pyside-pyside,IronManMark20/pyside2,PySide/PySide,RobinD42/pyside,PySide/PySide,M4rtinK/pyside-bb10,enthought/pyside,BadSingleton/pyside2,RobinD42/pyside,pankajp/pyside,enthought/pyside,enthought/pyside,qtproject/pyside-pyside,BadSingleton/pyside2,M4rtinK/pyside-android,PySide/PySide,IronManMark20/pyside2,pankajp/pyside,qtproject/pyside-pyside,BadSingleton/pyside2,pankajp/pyside,M4rtinK/pyside-bb10