1 files changed, 0 insertions, 35 deletions
diff --git a/rustlings/exercises/15_traits/traits4.rs b/rustlings/exercises/15_traits/traits4.rs
deleted file mode 100644
index b23dcdd..0000000
--- a/rustlings/exercises/15_traits/traits4.rs
+++ /dev/null
@@ -1,35 +0,0 @@
-trait Licensed {
-    fn licensing_info(&self) -> String {
-        "Default license".to_string()
-    }
-}
-
-struct SomeSoftware;
-struct OtherSoftware;
-
-impl Licensed for SomeSoftware {}
-impl Licensed for OtherSoftware {}
-
-// TODO: Fix the compiler error by only changing the signature of this function.
-fn compare_license_types(software1: impl Licensed, software2: impl Licensed) -> bool {
-    software1.licensing_info() == software2.licensing_info()
-}
-
-fn main() {
-    // You can optionally experiment here.
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn compare_license_information() {
-        assert!(compare_license_types(SomeSoftware, OtherSoftware));
-    }
-
-    #[test]
-    fn compare_license_information_backwards() {
-        assert!(compare_license_types(OtherSoftware, SomeSoftware));
-    }
-}