Revert "fix(elements): correctly handle getting/setting properties before connecting the element (#36114)"

This reverts commit 363f14c893
because it is causing the side effects test to break on the
9.1.x branch.

packages/elements/test/create-custom-element_spec.ts

@@ -94,22 +94,6 @@ if (browserDetection.supportsCustomElements) {
       expect(strategy.inputs.get('fooFoo')).toBe('foo-foo-value');
       expect(strategy.inputs.get('barBar')).toBe('barBar-value');
     });
-
-    it('should properly handle getting/setting properties on the element even if the constructor is not called',
-       () => {
-         // Create a custom element while ensuring that the `NgElementStrategy` is not created
-         // inside the constructor. This is done to emulate the behavior of some polyfills that do
-         // not call the constructor.
-         strategyFactory.create = () => undefined as unknown as NgElementStrategy;
-         const element = new NgElementCtor(injector);
-         strategyFactory.create = TestStrategyFactory.prototype.create;
-
-         element.fooFoo = 'foo-foo-value';
-         element.barBar = 'barBar-value';
-
-         expect(strategy.inputs.get('fooFoo')).toBe('foo-foo-value');
-         expect(strategy.inputs.get('barBar')).toBe('barBar-value');
-       });
   });
 }