Remove some unused header inclusions in pmf.h

Change-Id: I16127da5f14b53e06201be8c03d70afde8f7ad8e
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/include/runtime_services/pmf.h b/include/runtime_services/pmf.h
index 04f79c1..55828e2 100644
--- a/include/runtime_services/pmf.h
+++ b/include/runtime_services/pmf.h
@@ -7,13 +7,6 @@
 #ifndef __PMF_H__
 #define __PMF_H__
 
-#ifndef __ASSEMBLY__
-#include <assert.h>
-#include <platform_def.h>
-#include <stdbool.h>
-#include <stdint.h>
-#endif
-
 /*
  * Constants used for/by PMF services.
  */