RunControl: Make sure to reset the outputformater

Make sure to reset the outputformater in the RunControl's Application
Output Tab when the runControl finishes.

Change-Id: I7014727580f56f3769f1308da53a1e37231fba22
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/projectexplorer/runconfiguration.cpp

@@ -511,10 +511,6 @@ public:
             device = DeviceKitInformation::device(runConfiguration->target()->kit());
             project = runConfiguration->target()->project();
         }
-
-        // We need to ensure that there's always a OutputFormatter
-        if (!outputFormatter)
-            outputFormatter = new Utils::OutputFormatter();
     }
 
     ~RunControlPrivate()