diff --git a/actionpack/test/controller/filters_test.rb b/actionpack/test/controller/filters_test.rb
index c26e09d8ac..b19d1488de 100644
--- a/actionpack/test/controller/filters_test.rb
+++ b/actionpack/test/controller/filters_test.rb
@@ -12,7 +12,7 @@ class ActionController::Base
 
     def before_actions
       filters = _process_action_callbacks.select { |c| c.kind == :before }
-      filters.map!(&:raw_filter)
+      filters.map!(&:filter)
     end
   end
 end
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb
index a86af00527..a65ff5cf72 100644
--- a/activesupport/lib/active_support/callbacks.rb
+++ b/activesupport/lib/active_support/callbacks.rb
@@ -289,21 +289,17 @@ module ActiveSupport
         end
 
         attr_accessor :kind, :name
-        attr_reader :chain_config
+        attr_reader :chain_config, :filter
 
         def initialize(name, filter, kind, options, chain_config)
           @chain_config = chain_config
           @name    = name
           @kind    = kind
           @filter  = filter
-          @key     = compute_identifier filter
           @if      = check_conditionals(options[:if])
           @unless  = check_conditionals(options[:unless])
         end
 
-        def filter; @key; end
-        def raw_filter; @filter; end
-
         def merge_conditional_options(chain, if_option:, unless_option:)
           options = {
             if: @if.dup,
@@ -367,15 +363,6 @@ module ActiveSupport
             conditionals.freeze
           end
 
-          def compute_identifier(filter)
-            case filter
-            when ::Proc
-              filter.object_id
-            else
-              filter
-            end
-          end
-
           def conditions_lambdas
             @if.map { |c| CallTemplate.build(c, self).make_lambda } +
               @unless.map { |c| CallTemplate.build(c, self).inverted_lambda }
diff --git a/activesupport/test/callbacks_test.rb b/activesupport/test/callbacks_test.rb
index 499698c1a3..a1cba3ce45 100644
--- a/activesupport/test/callbacks_test.rb
+++ b/activesupport/test/callbacks_test.rb
@@ -1129,15 +1129,6 @@ module CallbacksTest
       }
     end
 
-    def test_skip_lambda # raises error
-      calls = []
-      callback = ->(o) { calls << o }
-      klass = build_class(callback)
-      assert_raises(ArgumentError) { klass.skip callback }
-      klass.new.run
-      assert_equal 10, calls.length
-    end
-
     def test_skip_symbol # removes all
       calls = []
       klass = build_class(:bar)
diff --git a/activesupport/test/test_case_test.rb b/activesupport/test/test_case_test.rb
index ac2923a313..e6342e8382 100644
--- a/activesupport/test/test_case_test.rb
+++ b/activesupport/test/test_case_test.rb
@@ -325,9 +325,9 @@ class SetupAndTeardownTest < ActiveSupport::TestCase
   teardown :foo, :sentinel
 
   def test_inherited_setup_callbacks
-    assert_equal [:reset_callback_record, :foo], self.class._setup_callbacks.map(&:raw_filter)
+    assert_equal [:reset_callback_record, :foo], self.class._setup_callbacks.map(&:filter)
     assert_equal [:foo], @called_back
-    assert_equal [:foo, :sentinel], self.class._teardown_callbacks.map(&:raw_filter)
+    assert_equal [:foo, :sentinel], self.class._teardown_callbacks.map(&:filter)
   end
 
   def setup
@@ -355,9 +355,9 @@ class SubclassSetupAndTeardownTest < SetupAndTeardownTest
   teardown :bar
 
   def test_inherited_setup_callbacks
-    assert_equal [:reset_callback_record, :foo, :bar], self.class._setup_callbacks.map(&:raw_filter)
+    assert_equal [:reset_callback_record, :foo, :bar], self.class._setup_callbacks.map(&:filter)
     assert_equal [:foo, :bar], @called_back
-    assert_equal [:foo, :sentinel, :bar], self.class._teardown_callbacks.map(&:raw_filter)
+    assert_equal [:foo, :sentinel, :bar], self.class._teardown_callbacks.map(&:filter)
   end
 
   private