Remove unnecessary @nocollape. NFC (#23216)

This was added back in #20191 but I can't see how it can work. The thing
is being applied to here is a function variable. e.g.:

```
var Modulle = function() { ... return the a new module };
```

From the documentation for @nocollape is not clear to me that it has any
effect on normal variables like this.

Author: sbc100

tools/link.py

@@ -2430,7 +2430,7 @@ def modularize():
   if settings.MINIMAL_RUNTIME and not settings.PTHREADS:
     # Single threaded MINIMAL_RUNTIME programs do not need access to
     # document.currentScript, so a simple export declaration is enough.
-    src = f'/** @nocollapse */ var {settings.EXPORT_NAME} = {wrapper_function};'
+    src = f'var {settings.EXPORT_NAME} = {wrapper_function};'
   else:
     script_url_node = ''
     # When MODULARIZE this JS may be executed later,