Remove handle_restoration_failures

Author: pirj

lib/rspec/mocks/instance_method_stasher.rb

@@ -34,19 +34,12 @@ def restore
           @klass.__send__(:undef_method, @method)
         end
 
-        handle_restoration_failures do
-          # In Ruby 2.4 and earlier, `define_method` is private
-          @klass.__send__(:define_method, @method, @original_method)
-        end
+        # In Ruby 2.4 and earlier, `define_method` is private
+        @klass.__send__(:define_method, @method, @original_method)
 
         @original_method = nil
       end
 
-      def handle_restoration_failures
-        # No known reasons for restoration to fail on other rubies.
-        yield
-      end
-
     private
 
       # @private