diff --git a/src/wp-includes/revision.php b/src/wp-includes/revision.php
index 783bd06e15..b4ecf0c863 100644
--- a/src/wp-includes/revision.php
+++ b/src/wp-includes/revision.php
@@ -205,30 +205,15 @@ function wp_save_post_revision( $post_id ) {
 	 *
 	 * @since 6.2.0
 	 *
-	 * @param WP_Post[]|int[] $revisions Array of revision objects or IDs,
-	 *                                   or an empty array if none.
-	 * @param int             $post_id   The ID of the post to save as a revision.
+	 * @param WP_Post[] $revisions Array of revisions, or an empty array if none.
+	 * @param int       $post_id   The ID of the post to save as a revision.
 	 */
-	$filtered_revisions = apply_filters(
+	$revisions = apply_filters(
 		'wp_save_post_revision_revisions_before_deletion',
 		$revisions,
 		$post_id
 	);
 
-	if ( is_array( $filtered_revisions ) ) {
-		$revisions = $filtered_revisions;
-	} else {
-		_doing_it_wrong(
-			__FUNCTION__,
-			sprintf(
-				/* translators: %s: The filter name. */
-				__( 'The "%s" filter should return an array.' ),
-				'wp_save_post_revision_revisions_before_deletion'
-			),
-			'6.2.0'
-		);
-	}
-
 	$delete = count( $revisions ) - $revisions_to_keep;
 
 	if ( $delete < 1 ) {
diff --git a/tests/phpunit/tests/post/revisions.php b/tests/phpunit/tests/post/revisions.php
index 62e3bbef04..cc17ccd60d 100644
--- a/tests/phpunit/tests/post/revisions.php
+++ b/tests/phpunit/tests/post/revisions.php
@@ -928,53 +928,4 @@ class Tests_Post_Revisions extends WP_UnitTestCase {
 			'The title of the second revision was incorrect.'
 		);
 	}
-
-	/**
-	 * Tests that wp_save_post_revision() ignores an invalid return value
-	 * from the 'wp_save_post_revision_revisions_before_deletion' filter
-	 * and throws _doing_it_wrong().
-	 *
-	 * @ticket 57320
-	 *
-	 * @covers ::wp_save_post_revision
-	 *
-	 * @expectedIncorrectUsage wp_save_post_revision
-	 */
-	public function test_wp_save_post_revision_should_ignore_invalid_revisions_before_deletion_filter() {
-		$post_id = self::factory()->post->create( array( 'post_title' => 'Test 57320' ) );
-
-		add_filter(
-			'wp_revisions_to_keep',
-			static function() {
-				return 1;
-			}
-		);
-
-		add_filter( 'wp_save_post_revision_revisions_before_deletion', '__return_null' );
-
-		for ( $update = 1; $update < 4; ++$update ) {
-			wp_update_post(
-				array(
-					'ID'         => $post_id,
-					'post_title' => 'Test 57320 Update ' . $update,
-				)
-			);
-		}
-
-		$actual = wp_get_post_revisions( $post_id );
-
-		$this->assertCount(
-			1,
-			$actual,
-			'There should only be one revision.'
-		);
-
-		$first = reset( $actual );
-
-		$this->assertSame(
-			'Test 57320 Update 3',
-			$first->post_title,
-			'The title of the first revision was incorrect.'
-		);
-	}
 }