diff --git a/core/assets/scaffold/files/example.settings.local.php b/core/assets/scaffold/files/example.settings.local.php
index 7cb0e68577..1e18af9f21 100644
--- a/core/assets/scaffold/files/example.settings.local.php
+++ b/core/assets/scaffold/files/example.settings.local.php
@@ -32,8 +32,11 @@
  *
  * @see https://wiki.php.net/rfc/expectations
  */
-assert_options(ASSERT_ACTIVE, TRUE);
-assert_options(ASSERT_EXCEPTION, TRUE);
+if (PHP_VERSION_ID < 80300) {
+  // phpcs:ignore Generic.PHP.DeprecatedFunctions.Deprecated
+  assert_options(ASSERT_ACTIVE, TRUE);
+  assert_options(ASSERT_EXCEPTION, TRUE);
+}
 
 /**
  * Enable local development services.
diff --git a/core/modules/jsonapi/src/EventSubscriber/ResourceResponseValidator.php b/core/modules/jsonapi/src/EventSubscriber/ResourceResponseValidator.php
index 9761f0a7f3..167bf8af62 100644
--- a/core/modules/jsonapi/src/EventSubscriber/ResourceResponseValidator.php
+++ b/core/modules/jsonapi/src/EventSubscriber/ResourceResponseValidator.php
@@ -105,16 +105,8 @@ public function onResponse(ResponseEvent $event) {
       return;
     }
 
-    $this->doValidateResponse($response, $event->getRequest());
-  }
-
-  /**
-   * Wraps validation in an assert to prevent execution in production.
-   *
-   * @see self::validateResponse
-   */
-  public function doValidateResponse(Response $response, Request $request) {
-    assert($this->validateResponse($response, $request), 'A JSON:API response failed validation (see the logs for details). Please report this in the issue queue on drupal.org');
+    // Wraps validation in an assert to prevent execution in production.
+    assert($this->validateResponse($response, $event->getRequest()));
   }
 
   /**
diff --git a/core/modules/jsonapi/tests/src/Unit/EventSubscriber/ResourceResponseValidatorTest.php b/core/modules/jsonapi/tests/src/Unit/EventSubscriber/ResourceResponseValidatorTest.php
index df1c67603d..0e889198c2 100644
--- a/core/modules/jsonapi/tests/src/Unit/EventSubscriber/ResourceResponseValidatorTest.php
+++ b/core/modules/jsonapi/tests/src/Unit/EventSubscriber/ResourceResponseValidatorTest.php
@@ -54,51 +54,6 @@ protected function setUp(): void {
     $this->subscriber = $subscriber;
   }
 
-  /**
-   * @covers ::doValidateResponse
-   */
-  public function testDoValidateResponse() {
-    $request = $this->createRequest(
-      'jsonapi.node--article.individual',
-      new ResourceType('node', 'article', NULL)
-    );
-
-    $response = $this->createResponse('{"data":null}');
-
-    // Capture the default assert settings.
-    $zend_assertions_default = ini_get('zend.assertions');
-    // phpcs:ignore Generic.PHP.DeprecatedFunctions.Deprecated
-    $assert_active_default = assert_options(ASSERT_ACTIVE);
-
-    // The validator *should* be called when asserts are active.
-    $validator = $this->prophesize(Validator::class);
-    $validator->check(Argument::any(), Argument::any())->shouldBeCalled('Validation should be run when asserts are active.');
-    $validator->isValid()->willReturn(TRUE);
-    $this->subscriber->setValidator($validator->reveal());
-
-    // Ensure asset is active.
-    ini_set('zend.assertions', 1);
-    // phpcs:ignore Generic.PHP.DeprecatedFunctions.Deprecated
-    assert_options(ASSERT_ACTIVE, 1);
-    $this->subscriber->doValidateResponse($response, $request);
-
-    // The validator should *not* be called when asserts are inactive.
-    $validator = $this->prophesize(Validator::class);
-    $validator->check(Argument::any(), Argument::any())->shouldNotBeCalled('Validation should not be run when asserts are not active.');
-    $this->subscriber->setValidator($validator->reveal());
-
-    // Ensure asset is inactive.
-    ini_set('zend.assertions', 0);
-    // phpcs:ignore Generic.PHP.DeprecatedFunctions.Deprecated
-    assert_options(ASSERT_ACTIVE, 0);
-    $this->subscriber->doValidateResponse($response, $request);
-
-    // Reset the original assert values.
-    ini_set('zend.assertions', $zend_assertions_default);
-    // phpcs:ignore Generic.PHP.DeprecatedFunctions.Deprecated
-    assert_options(ASSERT_ACTIVE, $assert_active_default);
-  }
-
   /**
    * @covers ::validateResponse
    * @dataProvider validateResponseProvider