input method: Drop unused member variable
The preedit struct holds values that need to be effectively double buffered till the preedit string is set. There is no need to store the text in this struct as it is reset at the end of setPreeditString
The preedit struct holds values that need to be effectively double buffered till the preedit string is set. There is no need to store the text in this struct as it is reset at the end of setPreeditString