Refactor BitBoard

Board.cpp

@@ -196,25 +196,7 @@ bool Board::isMoveCastling(const BitBoard &from, const BitBoard &to, const Piece
         return (from & indexToBitBoard(E1));
     }
 
-    return (from & indexToBitBoard(E8));
-}
-void Board::printBitBoard(const Board::BitBoard &bb) {
-    // For debugging only, performance isn't important
-    for (int i = 7; i >= 0; i--) {
-        int rank = i * 8;
-        for (int j = 0; j < 8; j++) {
-            // Get the piece for this index. Assume it exists.
-            // Print piece, otherwise '.';
-            if (bb & (1ULL << (rank + j))) {
-                std::cout << 1;
-            } else {
-                std::cout << '.';
-            }
-
-            std::cout << ' ';
-        }
-        std::cout << '\n';
-    }
+    return from & indexToBitBoard(E8);
 }
 
 std::ostream &operator<<(std::ostream &os, const Board &board) {