vfs: Drop dead package with
diff --git a/src/filo-fs-vfs.ads b/src/filo-fs-vfs.ads
index 55c309a..3291bc8 100644
--- a/src/filo-fs-vfs.ads
+++ b/src/filo-fs-vfs.ads
@@ -1,6 +1,5 @@
 with System;
 with Interfaces.C;
-with Interfaces.C.Strings;
 
 use Interfaces.C;