* unicode.c: Remove the arrays onigenc_unicode_GCB_ranges_GAZ,
onigenc_unicode_GCB_ranges_E_Base, and onigenc_unicode_GCB_ranges_Emoji,
because they are not needed anymore for Unicode 11.0.0.
* regparse.c: Remove external declarations for above arrays.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66232 b2dd03c8-39d4-4d8f-98ff-823fe69b080e