fix: try removing attachment and fail silently if not attached (#3089)

fix: try removing attachment and fail silently if not attached to registered permissible

Author: PierreSchwang

worldedit-bukkit/src/main/java/com/fastasyncworldedit/bukkit/BukkitPermissionAttachmentManager.java

@@ -38,7 +38,7 @@ public void removeAttachment(@Nullable final Player p) {
         }
         PermissionAttachment attach = attachments.remove(p);
         if (attach != null) {
-            p.removeAttachment(attach);
+            attach.remove();
         }
     }