diff --git a/src/plugins/boot2qt/device-detection/hostmessages.cpp b/src/plugins/boot2qt/device-detection/hostmessages.cpp
index c8343bab88d..9b4864c77a8 100644
--- a/src/plugins/boot2qt/device-detection/hostmessages.cpp
+++ b/src/plugins/boot2qt/device-detection/hostmessages.cpp
@@ -5,6 +5,8 @@
 
 #include <utils/qtcassert.h>
 
+const int qdbHostMessageVersion = 1;
+
 const QString responseField = "response";
 const QString requestField = "request";
 const QString versionField = "_version";
@@ -14,39 +16,7 @@ void setVersionField(QJsonObject &obj)
     obj[versionField] = qdbHostMessageVersion;
 }
 
-bool checkHostMessageVersion(const QJsonObject &obj)
-{
-    return obj[versionField].toInt() == qdbHostMessageVersion;
-}
-
-QByteArray createRequest(const RequestType &type)
-{
-    QJsonObject obj;
-    setVersionField(obj);
-    obj[requestField] = requestTypeString(type);
-    return QJsonDocument{obj}.toJson(QJsonDocument::Compact).append('\n');
-}
-
-RequestType requestType(const QJsonObject &obj)
-{
-    const auto fieldValue = obj[requestField];
-    if (fieldValue == requestTypeString(RequestType::Devices))
-        return RequestType::Devices;
-    if (fieldValue == requestTypeString(RequestType::WatchDevices))
-        return RequestType::WatchDevices;
-    if (fieldValue == requestTypeString(RequestType::StopServer))
-        return RequestType::StopServer;
-    if (fieldValue == requestTypeString(RequestType::Messages))
-        return RequestType::Messages;
-    if (fieldValue == requestTypeString(RequestType::WatchMessages))
-        return RequestType::WatchMessages;
-    if (fieldValue == requestTypeString(RequestType::MessagesAndClear))
-        return RequestType::MessagesAndClear;
-
-    return RequestType::Unknown;
-}
-
-QString requestTypeString(const RequestType &type)
+static QString requestTypeString(const RequestType &type)
 {
     switch (type) {
     case RequestType::Devices:
@@ -64,15 +34,15 @@ QString requestTypeString(const RequestType &type)
     case RequestType::Unknown:
         break;
     }
-    QTC_ASSERT(false, return QString());
+    QTC_ASSERT(false, return {});
 }
 
-QJsonObject initializeResponse(const ResponseType &type)
+QByteArray createRequest(const RequestType &type)
 {
     QJsonObject obj;
     setVersionField(obj);
-    obj[responseField] = responseTypeString(type);
-    return obj;
+    obj[requestField] = requestTypeString(type);
+    return QJsonDocument{obj}.toJson(QJsonDocument::Compact).append('\n');
 }
 
 ResponseType responseType(const QJsonObject &obj)
@@ -118,8 +88,3 @@ QString responseTypeString(const ResponseType &type)
     }
     QTC_ASSERT(false, return QString());
 }
-
-QByteArray serialiseResponse(const QJsonObject &obj)
-{
-    return QJsonDocument{obj}.toJson(QJsonDocument::Compact).append('\n');
-}
diff --git a/src/plugins/boot2qt/device-detection/hostmessages.h b/src/plugins/boot2qt/device-detection/hostmessages.h
index ea98c9bcc97..c78f55ec4cf 100644
--- a/src/plugins/boot2qt/device-detection/hostmessages.h
+++ b/src/plugins/boot2qt/device-detection/hostmessages.h
@@ -7,9 +7,6 @@
 #include <QtCore/qjsondocument.h>
 #include <QtCore/qjsonobject.h>
 
-const int qdbHostMessageVersion = 1;
-bool checkHostMessageVersion(const QJsonObject &obj);
-
 enum class RequestType
 {
     Unknown = 0,
@@ -22,8 +19,6 @@ enum class RequestType
 };
 
 QByteArray createRequest(const RequestType &type);
-RequestType requestType(const QJsonObject &obj);
-QString requestTypeString(const RequestType &type);
 
 enum class ResponseType
 {
@@ -37,7 +32,5 @@ enum class ResponseType
     Messages,
 };
 
-QJsonObject initializeResponse(const ResponseType &type);
 ResponseType responseType(const QJsonObject &obj);
 QString responseTypeString(const ResponseType &type);
-QByteArray serialiseResponse(const QJsonObject &obj);
diff --git a/src/plugins/boot2qt/qdbrunconfiguration.cpp b/src/plugins/boot2qt/qdbrunconfiguration.cpp
index cbeb71c4d10..85078285ecd 100644
--- a/src/plugins/boot2qt/qdbrunconfiguration.cpp
+++ b/src/plugins/boot2qt/qdbrunconfiguration.cpp
@@ -89,11 +89,6 @@ private:
         return tasks;
     }
 
-    QString defaultDisplayName() const
-    {
-        return RunConfigurationFactory::decoratedTargetName(buildKey(), target());
-    }
-
     ExecutableAspect executable{this};
     SymbolFileAspect symbolFile{this};
     RemoteLinux::RemoteLinuxEnvironmentAspect environment{this};