Remove ConditonalTagCheck class

lib/config.php

@@ -28,38 +28,18 @@ if (!defined('DIST_DIR')) {
 }
 
 /**
- * Define which pages shouldn't have the sidebar
+ * Determine which pages should NOT display the sidebar
  */
 function display_sidebar() {
   static $display;
 
-  if (!isset($display)) {
-    $conditionalCheck = new ConditionalTagCheck(
-      /**
-       * Any of these conditional tags that return true won't show the sidebar.
-       * You can also specify your own custom function as long as it returns a boolean.
-       *
-       * To use a function that accepts arguments, use an array instead of just the function name as a string.
-       *
-       * Examples:
-       *
-       * 'is_single'
-       * 'is_archive'
-       * ['is_page', 'about-me']
-       * ['is_tax', ['flavor', 'mild']]
-       * ['is_page_template', 'about.php']
-       * ['is_post_type_archive', ['foo', 'bar', 'baz']]
-       *
-       */
-      [
-        'is_404',
-        'is_front_page',
-        ['is_page_template', 'template-custom.php']
-      ]
-    );
+  isset($display) || $display = !in_array(true, [
+    // The sidebar will NOT be displayed if ANY of the following return true.
+    // @link https://codex.wordpress.org/Conditional_Tags
+    is_404(),
+    is_front_page(),
+    is_page_template('template-custom.php'),
+  ]);
 
-    $display = apply_filters('sage/display_sidebar', $conditionalCheck->result);
-  }
-
-  return $display;
+  return apply_filters('sage/display_sidebar', $display);
 }