Remove broken conversion

src/file.rs

@@ -425,8 +425,7 @@ impl<'a> File<'a> {
 
     /// Helper method for the permissions string.
     fn permission_bit(bits: mode_t, bit: mode_t, character: &'static str, style: Style) -> ANSIString<'static> {
-        let bi32 = bit as u16;
-        if bits & bi32 == bi32 {
+        if bits & bit == bit {
             style.paint(character)
         }
         else {