Noissue - Remove workaround for WebKit getter misoptimization

lib/filterClasses.js

Index: lib/filterClasses.js
===================================================================
--- a/lib/filterClasses.js
+++ b/lib/filterClasses.js
@@ -394,22 +394,16 @@
 
   /**
    * Map containing domains that this filter should match on/not match
    * on or null if the filter should match on all domains
    * @type {?Map.<string,boolean>}
    */
   get domains()
   {
-    // Despite this property being cached, the getter is called
-    // several times on Safari, due to WebKit bug 132872
-    let prop = Object.getOwnPropertyDescriptor(this, "domains");
-    if (prop)
-      return prop.value;
-
     let domains = null;
 
     if (this.domainSource)
     {
       let source = this.domainSource;
       if (!this.domainSourceIsUpperCase)
       {
         // RegExpFilter already have uppercase domains
@@ -640,22 +634,16 @@
    */
   regexpSource: null,
   /**
    * Regular expression to be used when testing against this filter
    * @type {RegExp}
    */
   get regexp()
   {
-    // Despite this property being cached, the getter is called
-    // several times on Safari, due to WebKit bug 132872
-    let prop = Object.getOwnPropertyDescriptor(this, "regexp");
-    if (prop)
-      return prop.value;
-
     let source = Filter.toRegExp(this.regexpSource);
     let regexp = new RegExp(source, this.matchCase ? "" : "i");
     Object.defineProperty(this, "regexp", {value: regexp});
     this.regexpSource = null;
     return regexp;
   },
   /**
    * Content types the filter applies to, combination of values from
@@ -682,22 +670,16 @@
    */
   sitekeySource: null,
 
   /**
    * @see ActiveFilter.sitekeys
    */
   get sitekeys()
   {
-    // Despite this property being cached, the getter is called
-    // several times on Safari, due to WebKit bug 132872
-    let prop = Object.getOwnPropertyDescriptor(this, "sitekeys");
-    if (prop)
-      return prop.value;
-
     let sitekeys = null;
 
     if (this.sitekeySource)
     {
       sitekeys = this.sitekeySource.split("|");
       this.sitekeySource = null;
     }