Replace the workaround for bug 40663 by the real fix....

nss/patches/nspr-attach-as-system-thread.patch

Index: nss/patches/nspr-attach-as-system-thread.patch
===================================================================
--- nss/patches/nspr-attach-as-system-thread.patch	(revision 55475)
+++ nss/patches/nspr-attach-as-system-thread.patch	(working copy)
@@ -1,22 +0,0 @@
-Index: mozilla/nsprpub/pr/src/md/windows/w95thred.c
-===================================================================
-RCS file: /cvsroot/mozilla/nsprpub/pr/src/md/windows/w95thred.c,v
-retrieving revision 3.18
-diff -u -p -u -8 -r3.18 w95thred.c
---- mozilla/nsprpub/pr/src/md/windows/w95thred.c	4 Feb 2009 23:44:01 -0000	3.18
-+++ mozilla/nsprpub/pr/src/md/windows/w95thred.c	20 Apr 2010 18:06:13 -0000
-@@ -304,13 +304,13 @@ PRThread*
- _MD_CURRENT_THREAD(void)
- {
- PRThread *thread;
- 
- 	thread = _MD_GET_ATTACHED_THREAD();
- 
-    	if (NULL == thread) {
- 		thread = _PRI_AttachThread(
--            PR_USER_THREAD, PR_PRIORITY_NORMAL, NULL, 0);
-+            PR_SYSTEM_THREAD, PR_PRIORITY_NORMAL, NULL, 0);
- 	}
- 	PR_ASSERT(thread != NULL);
- 	return thread;
- }