Problem: Extra new line appeared in jisx0208_sjis2.dat in a mistake, which
broke jp_convert_sjis and jp_select_sjis tests.
Fix: removing extra line

  mysql-test/suite/jp/std_data/jisx0208_sjis2.dat:
      removing wrong extra new line

  mysql-test/suite/jp/t/disabled.def:     
      activating disabled tests