refactor: removed unsed vars

Author: Ho3einWave

src/services/swap/swap.service.ts

@@ -1,13 +1,3 @@
-import {
-    Address,
-    address,
-    beginCell,
-    Cell,
-    OpenedContract,
-    SenderArguments,
-    toNano,
-} from '@ton/ton';
-
 import { Services } from '../../core/services';
 import { BestRoute } from '../../types/router';
 import { SwapResponse } from '../../types/swap';