Revert self-referencing finalizer warning [Feature #15974]

It has caused CI failures.

* d0cd0866d82a58933e5dccd073c753c0c2ad4eb5

  Disable GC during rb_objspace_reachable_object_p

* 89cef1c56b3a0f9c5e6ccc22a5044477a4fd16c1

  Version guard for [Feature #15974]

* 796eeb6339952d92ae1b353d450c7883e589852d.

  Fix up [Feature #15974]

* 928260c2a613bbdd4402c300e0bf86ae7562e52a.

  Warn in verbose mode on defining a finalizer that captures the object

1 files changed, 0 insertions, 28 deletions

diff --git a/spec/ruby/core/objectspace/define_finalizer_spec.rb b/spec/ruby/core/objectspace/define_finalizer_spec.rb
index fef7667039..b7e47473a0 100644
--- a/spec/ruby/core/objectspace/define_finalizer_spec.rb
+++ b/spec/ruby/core/objectspace/define_finalizer_spec.rb
@@ -65,32 +65,4 @@ describe "ObjectSpace.define_finalizer" do
 
     ruby_exe(code).lines.sort.should == ["finalized1\n", "finalized2\n"]
   end
-
-  ruby_version_is "2.7" do
-    it "warns in verbose mode if it is self-referencing" do
-      code = <<-RUBY
-        obj = "Test"
-        handler = Proc.new { puts "finalized" }
-        ObjectSpace.define_finalizer(obj, handler)
-        exit 0
-      RUBY
-
-      ruby_exe(code, :options => "-w", :args => "2>&1").should include("warning: object is reachable from finalizer - it may never be run")
-    end
-
-    it "warns in verbose mode if it is indirectly self-referencing" do
-      code = <<-RUBY
-        def scoped(indirect)
-          Proc.new { puts "finalized" }
-        end
-        obj = "Test"
-        indirect = [obj]
-        handler = scoped(indirect)
-        ObjectSpace.define_finalizer(obj, handler)
-        exit 0
-      RUBY
-
-      ruby_exe(code, :options => "-w", :args => "2>&1").should include("warning: object is reachable from finalizer - it may never be run")
-    end
-  end
 end