Disable some misplaced perf tests because they are randomly orange.

js/src/tests/ecma_3/RegExp/jstests.list

@@ -64,6 +64,6 @@ script regress-67773.js
 script regress-72964.js
 script regress-76683.js
 script regress-78156.js
-script regress-85721.js
+random script regress-85721.js # bogus perf test (bug 467263)
 script regress-87231.js
 script regress-98306.js

js/src/tests/js1_5/Array/jstests.list

@@ -1,7 +1,7 @@
 url-prefix ../../jsreftest.html?test=js1_5/Array/
 script 11.1.4.js
 script array-001.js
-script regress-101964.js
+random script regress-101964.js # bogus perf test (bug 467263)
 script regress-107138.js
 fails-if(!xulRuntime.shell) script regress-108440.js # bug - NS_ERROR_DOM_NOT_SUPPORTED_ERR line 74
 script regress-154338.js