ProjectExplorer: Streamline OutputFormatter creation a bit

Note that the concept of a single monolithic OutputFormatter per
RunConfiguration (and why RunConfiguration, not RunControl to start
with?) is unchanged and suboptimal as one cannot easily combine
existing use cases, e.g. Python_and_Qt.

Change-Id: Ibeb8191020387324f22ed313230293597f96e36a
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/android/androidrunconfiguration.h

@@ -38,7 +38,6 @@ public:
     explicit AndroidRunConfiguration(ProjectExplorer::Target *target, Core::Id id);
 
     QWidget *createConfigurationWidget() override;
-    Utils::OutputFormatter *createOutputFormatter() const override;
 
     bool fromMap(const QVariantMap &map) override;
     QVariantMap toMap() const override;