Remove the tsx workaround as it had been fixed in upstream

extra/clean-tsx-tmp.js

@@ -1,13 +0,0 @@
-/*
- * This script is used to clean up the tmp directory.
- * A workaround for https://github.com/louislam/dockge/issues/353
- */
-import * as fs from "fs";
-
-try {
-    fs.rmSync("/tmp/tsx-0", {
-        recursive: true,
-    });
-} catch (e) {
-
-}