-Werror,-Wunused-member-function
-Werror,-Wunused-member-function

...the whole ChooserDialogHandler class is unused since before
bdc71b3e4112b5c83a6aec61403981fcdd156138 "remove non-compiled code" removed its
sole, #if'ed out use.

Change-Id: If94db1c98074132952dd204864a478e1e12d455d

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