remove last XubString uses in cppcanvas
remove last XubString uses in cppcanvas

Change-Id: I2ebc11a972f9a806889e13e7f69e20cd91d2ae6e

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