added a new feature to delete existing version\profile

launcherbackend.cpp

@@ -46,6 +46,24 @@ void LauncherBackend::addVersion(const QString &name, const QString &serverUrl)
     emit versionsChanged();
 }
 
+void LauncherBackend::removeProfile(int index)
+{
+    if (index < 0 || index >= m_profiles.size())
+        return;
+    m_profiles.removeAt(index);
+    saveProfiles();
+    emit profilesChanged();
+}
+
+void LauncherBackend::removeVersion(int index)
+{
+    if (index < 0 || index >= m_versions.size())
+        return;
+    m_versions.removeAt(index);
+    saveVersions();
+    emit versionsChanged();
+}
+
 void LauncherBackend::launchGame(int profileIndex, int versionIndex)
 {
     if (profileIndex < 0 || profileIndex >= m_profiles.size()) {