module: removed unused variable

The variable problemChecking was not used. Removed it.

PR-URL: nodejs#23624
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

Author: momander

lib/internal/modules/esm/default_resolve.js

@@ -36,7 +36,7 @@ function search(target, base) {
         new URL('./', questionedBase).pathname);
       const found = CJSmodule._resolveFilename(target, tmpMod);
       error = new ERR_MODULE_RESOLUTION_LEGACY(target, base, found);
-    } catch (problemChecking) {
+    } catch {
       // ignore
     }
     throw error;