Update testnashorn status file.

Author: woess

graal-js/test/testNashorn.json

@@ -423,9 +423,6 @@
     "filePath" : "basic/JDK-8067136.js",
     "status" : "SKIP",
     "comment" : "using jdk.nashorn.api.scripting.JSObject"
-  }, {
-    "filePath" : "basic/JDK-8068580.js",
-    "status" : "FAIL"
   }, {
     "filePath" : "basic/JDK-8068903.js",
     "status" : "FAIL"