Revert some part of eb2e65a882f0b95efeefe0115d9a942861768ba8

The name is "QApplicationCore::applicationName + .knsrc"

> by default it doesn't exist

> it returns all the time 'this file doesn't exist"

(cherry picked from commit e98a2e4b6f0042c10a31023ef37a3534832135b6)