xdata: Remove a now-redundant Default bound

We were trying to get rid of these, but missed this one.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/src/gamestate.rs b/src/gamestate.rs
index 22ea1df5f9c7bfb78a493801ad77c96f658dd656..ffdcf01b243eb2261d832b271d9287556e86ebf3 100644 (file)
--- a/src/gamestate.rs
+++ b/src/gamestate.rs
@@ -281,7 +281,7 @@ impl GPiece {
 
   #[throws(IE)]
   pub fn xdata_mut<
-      T: PieceXData + Default,
+      T: PieceXData,
       D: FnOnce() -> T,
   >(&mut self, def: D) -> &mut T {
     self.xdata.get_mut(def)?