coverity#1267638: logically dead code in SwUndo::RedoWithContext()
coverity#1267638: logically dead code in SwUndo::RedoWithContext()

Change-Id: Iab669a18ed990a23c77b5bb3d6b0a935a8af2c5d

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