diff --git a/third_party/SingleApplication-3.3.2/singleapplication_p.h b/third_party/SingleApplication-3.3.2/singleapplication_p.h
deleted file mode 100644
index 58507cf3..00000000
--- a/third_party/SingleApplication-3.3.2/singleapplication_p.h
+++ /dev/null
@@ -1,109 +0,0 @@
-// The MIT License (MIT)
-//
-// Copyright (c) Itay Grudev 2015 - 2020
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-//
-// W A R N I N G !!!
-// -----------------
-//
-// This file is not part of the SingleApplication API. It is used purely as an
-// implementation detail. This header file may change from version to
-// version without notice, or may even be removed.
-//
-
-#ifndef SINGLEAPPLICATION_P_H
-#define SINGLEAPPLICATION_P_H
-
-#include <QtCore/QSharedMemory>
-#include <QtNetwork/QLocalServer>
-#include <QtNetwork/QLocalSocket>
-#include "singleapplication.h"
-
-struct InstancesInfo {
- bool primary;
- quint32 secondary;
- qint64 primaryPid;
- char primaryUser[128];
- quint16 checksum; // Must be the last field
-};
-
-struct ConnectionInfo {
- qint64 msgLen = 0;
- quint32 instanceId = 0;
- quint8 stage = 0;
-};
-
-class SingleApplicationPrivate : public QObject {
-Q_OBJECT
-public:
- enum ConnectionType : quint8 {
- InvalidConnection = 0,
- NewInstance = 1,
- SecondaryInstance = 2,
- Reconnect = 3
- };
- enum ConnectionStage : quint8 {
- StageInitHeader = 0,
- StageInitBody = 1,
- StageConnectedHeader = 2,
- StageConnectedBody = 3,
- };
- Q_DECLARE_PUBLIC(SingleApplication)
-
- SingleApplicationPrivate( SingleApplication *q_ptr );
- ~SingleApplicationPrivate() override;
-
- static QString getUsername();
- void genBlockServerName();
- void initializeMemoryBlock() const;
- void startPrimary();
- void startSecondary();
- bool connectToPrimary( int msecs, ConnectionType connectionType );
- quint16 blockChecksum() const;
- qint64 primaryPid() const;
- QString primaryUser() const;
- bool isFrameComplete(QLocalSocket *sock);
- void readMessageHeader(QLocalSocket *socket, ConnectionStage nextStage);
- void readInitMessageBody(QLocalSocket *socket);
- void writeAck(QLocalSocket *sock);
- bool writeConfirmedFrame(int msecs, const QByteArray &msg);
- bool writeConfirmedMessage(int msecs, const QByteArray &msg);
- static void randomSleep();
- void addAppData(const QString &data);
- QStringList appData() const;
-
- SingleApplication *q_ptr;
- QSharedMemory *memory;
- QLocalSocket *socket;
- QLocalServer *server;
- quint32 instanceNumber;
- QString blockServerName;
- SingleApplication::Options options;
- QMap<QLocalSocket*, ConnectionInfo> connectionMap;
- QStringList appDataList;
-
-public Q_SLOTS:
- void slotConnectionEstablished();
- void slotDataAvailable( QLocalSocket*, quint32 );
- void slotClientConnectionClosed( QLocalSocket*, quint32 );
-};
-
-#endif // SINGLEAPPLICATION_P_H
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