Removing pipeline related code

This code is broken since Phaser 3.50 and we are facing weird issues with MacOS memory leaks and crashes.
Removing this code will remove one potential suspect.

front/src/index.ts

@@ -93,10 +93,11 @@ const config: GameConfig = {
     },
     callbacks: {
         postBoot: game => {
-            const renderer = game.renderer;
+            // Commented out to try to fix MacOS bug
+            /*const renderer = game.renderer;
             if (renderer instanceof WebGLRenderer) {
                 renderer.pipelines.add(OutlinePipeline.KEY, new OutlinePipeline(game));
-            }
+            }*/
         }
     }
 };