[board] Remove Board::new()

board/src/board.rs

@@ -50,24 +50,6 @@ impl Board {
         }
     }
 
-    pub(crate) fn new(
-        player_to_move: Color,
-        flags: Flags,
-        pieces: PieceSet,
-        en_passant: Option<EnPassant>,
-        half_move_counter: u16,
-        full_move_number: u16,
-    ) -> Self {
-        Self {
-            player_to_move,
-            flags,
-            pieces,
-            en_passant,
-            half_move_counter,
-            full_move_number,
-        }
-    }
-
     #[must_use]
     pub fn player_to_move(&self) -> Color {
         self.move_counter.active_color