schema tree BUGFIX remove system-specific header include
diff --git a/src/tree_schema_helpers.c b/src/tree_schema_helpers.c
index 9ba34e9..f38aeec 100644
--- a/src/tree_schema_helpers.c
+++ b/src/tree_schema_helpers.c
@@ -14,7 +14,6 @@
 #include "common.h"
 
 #include <assert.h>
-#include <bits/types/struct_tm.h>
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>