Fix warnings about unused variables
Fix warnings about unused variables

cpjreynolds/libwpd,Distrotech/librevenge,Distrotech/libpwd,cpjreynolds/libwpd,Distrotech/librevenge,Distrotech/librevenge,Distrotech/libpwd,Distrotech/libpwd,cpjreynolds/libwpd,Distrotech/librevenge,Distrotech/libpwd,Distrotech/librevenge