remove now-unnecessary features.h inclusion from fnmatch.h

include/fnmatch.h

@@ -5,8 +5,6 @@
 extern "C" {
 #endif
 
-#include <features.h>
-
 #define	FNM_PATHNAME 0x1
 #define	FNM_NOESCAPE 0x2
 #define	FNM_PERIOD   0x4