sw: remove utterly pointless assignment in SwXFlatParagraph::changeText()
sw: remove utterly pointless assignment in SwXFlatParagraph::changeText()

It will be set to 0 at the end anyway.

Change-Id: If9a8a70057a03980c37951f9ce74e1ae27541bfb

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core