uml: remove sysdep/thread.h

This patch removes thread.h, which turns out not to be needed any more.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/um/include/sysdep-i386/sigcontext.h b/arch/um/include/sysdep-i386/sigcontext.h
index 8658634..a930ce3 100644
--- a/arch/um/include/sysdep-i386/sigcontext.h
+++ b/arch/um/include/sysdep-i386/sigcontext.h
@@ -7,7 +7,8 @@
 #define __SYS_SIGCONTEXT_I386_H
 
 #include "uml-config.h"
-#include <sysdep/sc.h>
+#include "skas.h"
+#include "sysdep/sc.h"
 
 #define IP_RESTART_SYSCALL(ip) ((ip) -= 2)