Fix #10: Game freezes when launched until openlauncher is closed

stdout buffer was getting filled because openlauncher never read it, causing the game to halt.

src/IntelOrca.OpenLauncher.Core/InstallService.cs

@@ -71,8 +71,7 @@ public Task Launch()
             {
                 var psi = new ProcessStartInfo(ExecutablePath)
                 {
-                    RedirectStandardError = true,
-                    RedirectStandardOutput = true
+                    RedirectStandardError = true
                 };
                 var process = Process.Start(psi);
                 var outputBuilder = new StringBuilder();