Remove the PHP4 constructor from `WP_Widget`.

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@31684 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/widgets.php

@@ -164,18 +164,6 @@ class WP_Widget {
 		$this->control_options = wp_parse_args( $control_options, array('id_base' => $this->id_base) );
 	}
 
-	/**
-	 * PHP4 constructor
-	 *
-	 * @param string $id_base
-	 * @param string $name
-	 * @param array  $widget_options
-	 * @param array  $control_options
-	 */
-	public function WP_Widget( $id_base, $name, $widget_options = array(), $control_options = array() ) {
-		WP_Widget::__construct( $id_base, $name, $widget_options, $control_options );
-	}
-
 	/**
 	 * Constructs name attributes for use in form() fields
 	 *