Revert r35339-35343 because of no tests.

* hash.c: Alias ENV.to_h to ENV.to_hash [ref #6276]

* lib/ostruct.rb: Add OpenStruct#to_h [Feature #6276]

* struct.c: Add Struct#to_h [Feature #6276]

* object.c: Add NilClass#to_h [Feature #6276]

* hash.c: Add Hash#to_h [Feature #6276]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35383 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 18 deletions

diff --git a/object.c b/object.c
index 3c4445cb59..59bdea0c18 100644
--- a/object.c
+++ b/object.c
@@ -1058,23 +1058,6 @@ nil_to_a(VALUE obj)
 }
 
 /*
- * Document-method: to_h
- *
- *  call-seq:
- *     nil.to_h    -> {}
- *
- *  Always returns an empty hash.
- *
- *     nil.to_h   #=> {}
- */
-
-static VALUE
-nil_to_h(VALUE obj)
-{
-    return rb_hash_new();
-}
-
-/*
  *  call-seq:
  *    nil.inspect  -> "nil"
  *
@@ -2913,7 +2896,6 @@ Init_Object(void)
     rb_define_method(rb_cNilClass, "to_f", nil_to_f, 0);
     rb_define_method(rb_cNilClass, "to_s", nil_to_s, 0);
     rb_define_method(rb_cNilClass, "to_a", nil_to_a, 0);
-    rb_define_method(rb_cNilClass, "to_h", nil_to_h, 0);
     rb_define_method(rb_cNilClass, "inspect", nil_inspect, 0);
     rb_define_method(rb_cNilClass, "&", false_and, 1);
     rb_define_method(rb_cNilClass, "|", false_or, 1);