Revert "Make the Date field optional in Event List template and Shortcode"

This reverts commit 41755701a4.

includes/admin/post-types/meta-boxes/class-sp-meta-box-calendar-columns.php

@@ -28,8 +28,6 @@ class SP_Meta_Box_Calendar_Columns {
 		}
 
 		$columns = array();
-		
-		$columns['date'] = __( 'Date', 'sportspress' );
 
 		if ( 'teams' === $title_format ) {
 			$columns[ 'event' ] = __( 'Home', 'sportspress' ) . ' | ' . __( 'Away', 'sportspress' );

includes/class-sp-ajax.php

@@ -621,7 +621,6 @@ class SP_AJAX {
 				<?php _e( 'Columns:', 'sportspress' ); ?><br>
 				<?php 
 				$the_columns = array(
-					'date' => __( 'Date', 'sportspress' ),
 					'event' => __( 'Event', 'sportspress' ),
 					'teams' => __( 'Teams', 'sportspress' ),
 					'time' => __( 'Time', 'sportspress' ),