bootstrap: remove unused catch bindings

PR-URL: #24079
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Wyatt Preul <wpreul@gmail.com>

Author: cjihrig

lib/internal/bootstrap/node.js

@@ -554,7 +554,7 @@
   function tryGetCwd(path) {
     try {
       return process.cwd();
-    } catch (ex) {
+    } catch {
       // getcwd(3) can fail if the current working directory has been deleted.
       // Fall back to the directory name of the (absolute) executable path.
       // It's not really correct but what are the alternatives?