chore: remove un-used import

Signed-off-by: izzy <me@insrt.uk>

crates/core/files/src/implementation/media_impl.rs

@@ -160,7 +160,7 @@ impl MediaRepository for MediaImpl {
 
 #[cfg(test)]
 mod tests {
-    use std::io::{Cursor, Write};
+    use std::io::Cursor;
 
     use crate::{MediaImpl, MediaRepository};