re #91 : Remove translator related methods

- Remove KViewInterface::getTranslator
- Remove KViewInterface::setTranslator
- Remove KViewInterface::translate
- Remove KTemplateInterface::getTranslator
- Remove KTemplateInterface::setTranslator
- Remove KTemplateInterface::translate
- Remove KTemplateInterface::choose
- Remove KTemplateFilterInterface::translate
- Remove KTemplateHelperInterface::translate
- Remove KDate::getTranslator()
- Remove KDate::setTranslator()