[four-in-a-row/KaKnife/four-in-a-row-vala: 64/65] Remove unused method FourInARow.drop_marble()

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 192be622e70f75569cb73d96bc3c4f4bdcabe3f3
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Sat Dec 15 21:06:50 2018 -0600

    Remove unused method FourInARow.drop_marble()

 src/four-in-a-row.vala | 10 ----------
 1 file changed, 10 deletions(-)
---
diff --git a/src/four-in-a-row.vala b/src/four-in-a-row.vala
index fa89abb..2ca4de8 100644
--- a/src/four-in-a-row.vala
+++ b/src/four-in-a-row.vala
@@ -405,16 +405,6 @@ class FourInARow : Gtk.Application {
         timeout = Timeout.add(SPEED_DROP, temp.exec);
     }
 
-    void drop_marble(int r, int c) {
-        Tile tile = player == PlayerID.PLAYER1 ? Tile.PLAYER1 : Tile.PLAYER2;
-
-        game_board.set(r, c, tile);
-        game_board_view.draw_tile(r, c);
-
-        column = column_moveto = c;
-        row = row_dropto = r;
-    }
-
     public void drop() {
         Tile tile = player == PLAYER1 ? Tile.PLAYER1 : Tile.PLAYER2;