On Windows, default font appears twice in each fallback font list.

This was fond on generating datafiles for LogicalFonts test.

 405 2d.serif.bold.5.font=Lucida Sans Regular
 406 2d.serif.bold.5.exclusions=
 407 2d.serif.bold.5.file=LucidaSansRegular.ttf
          ...
 429 2d.serif.bold.13.font=Lucida Sans Regular
 430 2d.serif.bold.13.exclusions=
 431 2d.serif.bold.13.file=$JAVA_LIB_FONTS\\LucidaSansRegular.ttf

Second entry is not necessary.