Remove `Sleep` module that does not exist in CRuby.
MODIFY
mrbgems/mruby-sleep/src/mrb_sleep.c
mrbgems/mruby-sleep/src/mrb_sleep.c
/*
-** mrb_sleep - sleep class for mruby
+** mrb_sleep - sleep methods for mruby
**
** Copyright (c) mod_mruby developers 2012-
**
@@ -112,12 +112,6 @@ mrb_f_usleep(mrb_state *mrb, mrb_value self)
void
mrb_mruby_sleep_gem_init(mrb_state *mrb)
{
- struct RClass *sleep;
-
- sleep = mrb_define_module(mrb, "Sleep");
- mrb_define_class_method(mrb, sleep, "sleep", mrb_f_sleep, MRB_ARGS_REQ(1));
- mrb_define_class_method(mrb, sleep, "usleep", mrb_f_usleep, MRB_ARGS_REQ(1));
-
mrb_define_method(mrb, mrb->kernel_module, "sleep", mrb_f_sleep, MRB_ARGS_REQ(1));
mrb_define_method(mrb, mrb->kernel_module, "usleep", mrb_f_usleep, MRB_ARGS_REQ(1));
}

Remove `Sleep` module that does not exist in CRuby.