Fixed the last (hopefully) tidy CI error.

Author: denavila

src/qt/deniabilitydialog.cpp

@@ -41,9 +41,6 @@ using interfaces::Wallet;
 
 using wallet::CCoinControl;
 using wallet::COutput;
-using wallet::CWallet;
-using wallet::CWalletTx;
-using wallet::WalletContext;
 
 enum {
     COLUMN_CHECKBOX,