diff --git a/src/plugins/qtsupport/qtversionmanager.cpp b/src/plugins/qtsupport/qtversionmanager.cpp
index 7256d339152..f8ab8f50d35 100644
--- a/src/plugins/qtsupport/qtversionmanager.cpp
+++ b/src/plugins/qtsupport/qtversionmanager.cpp
@@ -503,12 +503,6 @@ QList<BaseQtVersion *> QtVersionManager::sortVersions(const QList<BaseQtVersion
     return result;
 }
 
-bool QtVersionManager::isValidId(int id)
-{
-    QTC_ASSERT(isLoaded(), return false);
-    return m_versions.contains(id);
-}
-
 BaseQtVersion *QtVersionManager::version(int id)
 {
     QTC_ASSERT(isLoaded(), return nullptr);
@@ -591,9 +585,4 @@ void QtVersionManager::setNewQtVersions(QList<BaseQtVersion *> newVersions)
         emit m_instance->qtVersionsChanged(addedVersions, removedVersions, changedVersions);
 }
 
-BaseQtVersion *QtVersionManager::qtVersionForQMakeBinary(const FilePath &qmakePath)
-{
-    return version(Utils::equal(&BaseQtVersion::qmakeCommand, qmakePath));
-}
-
 } // namespace QtVersion
diff --git a/src/plugins/qtsupport/qtversionmanager.h b/src/plugins/qtsupport/qtversionmanager.h
index 0d5cfe15562..65695bfff00 100644
--- a/src/plugins/qtsupport/qtversionmanager.h
+++ b/src/plugins/qtsupport/qtversionmanager.h
@@ -59,13 +59,9 @@ public:
     // Sorting is potentially expensive since it might require qmake --query to run for each version!
     static QList<BaseQtVersion *> sortVersions(const QList<BaseQtVersion *> &input);
 
-    static BaseQtVersion *qtVersionForQMakeBinary(const Utils::FilePath &qmakePath);
-
     static void addVersion(BaseQtVersion *version);
     static void removeVersion(BaseQtVersion *version);
 
-    static bool isValidId(int id);
-
 signals:
     // content of BaseQtVersion objects with qmake path might have changed
     void qtVersionsChanged(const QList<int> &addedIds, const QList<int> &removedIds, const QList<int> &changedIds);