JS: Remove obsolete comment

The test case actually has the correct result now

Author: asgerf

javascript/ql/lib/semmle/javascript/security/dataflow/DomBasedXssQuery.qll

@@ -105,7 +105,6 @@ module DomBasedXssConfig implements DataFlow::StateConfigSig {
     state1.isTaintedUrlSuffix() and
     state2.isTaintedPrefix()
     or
-    // FIXME: this fails to work in the test case at jquery.js:37
     exists(DataFlow::FunctionNode callback, DataFlow::Node arg |
       any(JQuery::MethodCall c).interpretsArgumentAsHtml(arg) and
       callback = arg.getABoundFunctionValue(_) and