Fix duplicate error cause logging with CLI

Author: mrbbot

packages/miniflare/src/cli.ts

@@ -97,7 +97,6 @@ async function main() {
     await mf.startScheduler();
   } catch (e: any) {
     mf.log.error(e);
-    if (e.cause) mf.log.error(e.cause);
     process.exitCode = 1;
     // Unmount any mounted workers
     await mf.dispose();