QbsSession: Remove state() from public API

This was used internally only.

Change-Id: I2678d3084ec941b78aa165a94e3d7ba4d3c6a2b7
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/qbsprojectmanager/qbssession.cpp

@@ -199,7 +199,7 @@ void QbsSession::initialize()
     });
     connect(d->qbsProcess, &QtcProcess::finished, this, [this] {
         d->qbsProcess->deleteLater();
-        switch (state()) {
+        switch (d->state) {
         case State::Inactive:
             QTC_CHECK(false);
             break;
@@ -246,11 +246,6 @@ QbsSession::~QbsSession()
     delete d;
 }
 
-QbsSession::State QbsSession::state() const
-{
-    return d->state;
-}
-
 optional<QbsSession::Error> QbsSession::lastError() const
 {
     return d->lastError;

src/plugins/qbsprojectmanager/qbssession.h

@@ -124,7 +124,6 @@ public:
     enum class State { Initializing, Active, Inactive };
     enum class Error { QbsFailedToStart, QbsQuit, ProtocolError, VersionMismatch };
 
-    State state() const;
     Utils::optional<Error> lastError() const;
     static QString errorString(Error error);
     QJsonObject projectData() const;