Remove sys/types.h include as per style (9)

SDT requries sys/param.h due to use of NULL

Reported by:	Garrett
Sponsored by:	Multiplay

share/man/man9/SDT.9

@@ -32,7 +32,6 @@
 .Nd a DTrace framework for adding statically-defined tracing probes
 .Sh SYNOPSIS
 .In sys/param.h
-.In sys/types.h
 .In sys/queue.h
 .In sys/sdt.h
 .Fn SDT_PROVIDER_DECLARE prov

sys/cddl/compat/opensolaris/kern/opensolaris_dtrace.c

@@ -30,7 +30,6 @@
 __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
-#include <sys/types.h>
 #include <sys/queue.h>
 #include <sys/sdt.h>