faux.sysdb: Fix header

faux/sysdb.h

@@ -6,31 +6,19 @@
 #define _faux_sysdb_h
 
 #include <stddef.h>
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif /* HAVE_CONFIG_H */
-
-#ifdef HAVE_PWD_H
+#include <sys/types.h>
 #include <pwd.h>
-#endif
-#ifdef HAVE_GRP_H
 #include <grp.h>
-#endif
 
 #include "faux/faux.h"
 
 C_DECL_BEGIN
 
 // Wrappers for ugly getpwnam_r()-like functions
-#ifdef HAVE_PWD_H
 struct passwd *faux_sysdb_getpwnam(const char *name);
 struct passwd *faux_sysdb_getpwuid(uid_t uid);
-#endif
-#ifdef HAVE_GRP_H
 struct group *faux_sysdb_getgrnam(const char *name);
 struct group *faux_sysdb_getgrgid(gid_t gid);
-#endif
 
 C_DECL_END