Revert "First pass at pulling the v1.5 CLI, TUI, and Launcher clients into v2."

This reverts commit 467b01edd6.

clients/cli/src/index.ts

@@ -1,19 +0,0 @@
-#!/usr/bin/env node
-
-import { resolve } from "path";
-import { fileURLToPath } from "url";
-import { runCli, validLogLevels } from "./cli.js";
-import { handleError } from "./error-handler.js";
-
-export { runCli, validLogLevels };
-
-const __filename = fileURLToPath(import.meta.url);
-const isMain =
-  process.argv[1] !== undefined &&
-  resolve(process.argv[1]) === resolve(__filename);
-
-if (isMain) {
-  runCli(process.argv)
-    .then(() => process.exit(0))
-    .catch(handleError);
-}