Remove unused variables

src/gamemanager.cpp

@@ -277,7 +277,6 @@ void Manager::initialize() {
 	d->activePlayer = White;
 	d->whiteTimeControl.currentTime = d->whiteTimeControl.baseTime;
 	d->blackTimeControl.currentTime = d->blackTimeControl.baseTime;
-	QList<Protocol*> protocols;
 	Protocol::white()->setTimeControl(d->whiteTimeControl);
 	Protocol::black()->setTimeControl(d->blackTimeControl);
 	connect ( Protocol::white(), &Protocol::pieceMoved, this, &Manager::moveByProtocol );

src/knights.cpp

@@ -316,8 +316,6 @@ void MainWindow::fileLoad() {
 
 void MainWindow::protocolInitSuccesful() {
 	qCDebug(LOG_KNIGHTS) << "Show Clock:" << Settings::showClock() << "Show Console:" << Settings::showConsole();
-	QString whiteName = Protocol::white()->playerName();
-	QString blackName = Protocol::black()->playerName();
 	updateCaption();
 
 	// show clock action button if timer active

src/rules/chessrules.cpp

@@ -524,7 +524,6 @@ void ChessRules::changeNotation ( Move* move, Move::Notation notation, Color col
 		 * * Rbe1 == Rook from file b to e1
 		 * * cd4 == Pawn from file c to d4
 		 */
-		QChar c;
 		PieceType type = NoType;
 		int file = -1;
 		int rank = -1;