fix: remove now-unused code from replay-transcript.js

Our replay-transcript.js tool has some affordances for forcing a
rebuild of the lockdown and supervisor bundles. Now that the bundles
are coming from separate packages, the affordances have changed. I'm
not sure if the new code is as useful as the original.

packages/SwingSet/misc-tools/replay-transcript.js

@@ -27,12 +27,6 @@ import { makeDummyMeterControl } from '../src/kernel/dummyMeterControl.js';
 import { makeGcAndFinalize } from '../src/lib-nodejs/gc-and-finalize.js';
 import engineGC from '../src/lib-nodejs/engine-gc.js';
 
-// Set the absolute path of the SDK to use for bundling
-// This can help if there are symlinks in the path that should be respected
-// to match the path of the SDK that produced the initial transcript
-// For e.g. set to '/src' if replaying a docker based loadgen transcript
-const ABSOLUTE_SDK_PATH = null;
-
 // Rebuild the bundles when starting the replay.
 // Disable if bundles were previously extracted form a Kernel DB, or
 // to save a few seconds and rely upon previously built versions instead
@@ -72,13 +66,6 @@ function makeSnapStoreIO() {
 }
 
 async function makeBundles() {
-  const controllerUrl = new URL(
-    `${
-      ABSOLUTE_SDK_PATH ? `${ABSOLUTE_SDK_PATH}/packages/SwingSet` : '..'
-    }/src/controller/initializeSwingset.js`,
-    import.meta.url,
-  );
-
   // we explicitly re-bundle these entry points, rather than using
   // getLockdownBundle(), because if you're calling this, you're
   // probably editing the sources anyways