diff --git a/Data/Query/DisplayCriteria/FilterOperatorMap.php b/Data/Query/DisplayCriteria/FilterOperatorMap.php
index <HASH>..<HASH> 100644
--- a/Data/Query/DisplayCriteria/FilterOperatorMap.php
+++ b/Data/Query/DisplayCriteria/FilterOperatorMap.php
@@ -30,30 +30,4 @@ class FilterOperatorMap
     const OPERATOR_IN = 'in';
 
     const OPERATOR_NOT_IN = 'notIn';
-
-    protected static $filterOperators = [
-        self::FILTER_BOOL => [
-            self::OPERATOR_EQUAL,
-            self::OPERATOR_EMPTY,
-            self::OPERATOR_NOT_EMPTY,
-        ],
-        self::FILTER_DATE => [
-            self::OPERATOR_EQUAL,
-            self::OPERATOR_NOT_EQUAL,
-            self::OPERATOR_GREATER,
-            self::OPERATOR_GREATER_EQUAL,
-            self::OPERATOR_LESSER,
-            self::OPERATOR_LESSER_EQUAL,
-            self::OPERATOR_EMPTY,
-            self::OPERATOR_NOT_EMPTY,
-        ],
-        self::FILTER_RANGE => [
-            self::OPERATOR_BETWEEN,
-            self::OPERATOR_NOT_BETWEEN,
-        ],
-        self::FILTER_CHOICE => [
-            self::OPERATOR_IN,
-            self::OPERATOR_NOT_IN,
-        ],
-    ];
 }
Remove invalid code in FilterOperatorMap

- constants in keys don't exist