Revert "Gallery Block: Use wp_enqueue_block_support_styles() if possi…

…ble (#43779)"

This reverts commit 0a51142.

packages/block-library/src/gallery/index.php

@@ -104,17 +104,7 @@ function block_core_gallery_render( $attributes, $content ) {
 	// Set the CSS variable to the column value, and the `gap` property to the combined gap value.
 	$style = '.wp-block-gallery.' . $class . '{ --wp--style--unstable-gallery-gap: ' . $gap_column . '; gap: ' . $gap_value . '}';
 
-	// If we're on WordPress >= 6.1, we can use `wp_enqueue_block_support_styles`, as it supports
-	// `$priority` as its second argument. Otherwise, we have to fall back to using our
-	// `gutenberg_enqueue_block_support_styles` shim.
-	if (
-		function_exists( 'wp_enqueue_block_support_styles' ) &&
-		2 === count( ( new ReflectionFunction( 'wp_enqueue_block_support_styles' ) )->getParameters() )
-	) {
-		wp_enqueue_block_support_styles( $style, 11 );
-	} else {
-		gutenberg_enqueue_block_support_styles( $style, 11 );
-	}
+	gutenberg_enqueue_block_support_styles( $style, 11 );
 	return $content;
 }
 /**