[ruby-cvs:66938] duerst:r59760: remove Unicode 9.0.0-related files

[duerst at ruby-lang.org]

duerst	2017-09-06 17:12:02 +0900 (Wed, 06 Sep 2017)

  New Revision: 59760

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=59760

  Log:
    remove Unicode 9.0.0-related files
    
    We don't need these files anymore because we upgraded to Unicode 10.0.0.

  Removed directories:
    trunk/enc/unicode/9.0.0/