Keep Polyfills service unonditional

src/Admin/Polyfills.php

@@ -9,12 +9,9 @@
 
 namespace AmpProject\AmpWP\Admin;
 
-use AmpProject\AmpWP\Infrastructure\Conditional;
 use AmpProject\AmpWP\Infrastructure\Delayed;
-use AmpProject\AmpWP\Infrastructure\HasRequirements;
 use AmpProject\AmpWP\Infrastructure\Registerable;
 use AmpProject\AmpWP\Infrastructure\Service;
-use AmpProject\AmpWP\Services;
 use WP_Scripts;
 use WP_Styles;
 
@@ -24,7 +21,7 @@
  * @since 2.0
  * @internal
  */
-final class Polyfills implements Conditional, Delayed, Service, Registerable, HasRequirements {
+final class Polyfills implements Delayed, Service, Registerable {
 
 	/**
 	 * Get the action to use for registering the service.
@@ -35,26 +32,6 @@ public static function get_registration_action() {
 		return 'amp_register_polyfills';
 	}
 
-	/**
-	 * Check whether the conditional object is currently needed.
-	 *
-	 * @return bool Whether the conditional object is needed.
-	 */
-	public static function is_needed() {
-		return ! Services::get( 'dependency_support' )->has_support();
-	}
-
-	/**
-	 * Get the list of service IDs required for this service to be registered.
-	 *
-	 * @return string[] List of required services.
-	 */
-	public static function get_requirements() {
-		return [
-			'dependency_support',
-		];
-	}
-
 	/**
 	 * Runs on instantiation.
 	 */