* internal.h (numberof): Gathered from various files.

* array.c, math.c, thread_pthread.c, iseq.c, enum.c, string.c, io.c,
  load.c, compile.c, struct.c, eval.c, gc.c, parse.y, process.c,
  error.c, ruby.c: Remove the definitions of numberof.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41142 b2dd03c8-39d4-4d8f-98ff-823fe69b080e