Remove unnecessary check in `Module#<`; ref
MODIFY
mrbgems/mruby-class-ext/mrblib/module.rb
mrbgems/mruby-class-ext/mrblib/module.rb
@@ -10,7 +10,6 @@ class Module
# "class A < B" implies "A < B".)
#
def <(other)
- raise TypeError, 'compared with non class/module' unless other.is_a?(Module)
if self.equal?(other)
false
else

Remove unnecessary check in `Module#<`; ref #4174