Revert "Fix parseApi not accepting versions that don't start with 'v' (#441)" (#448)

This reverts commit 00557c9940.

src/main/prometheus/lens.ts

@@ -18,7 +18,7 @@ export class PrometheusLens implements PrometheusProvider {
         port: service.spec.ports[0].port
       }
     } catch(error) {
-      logger.warn(`PrometheusLens: failed to list services: ${error.response.body.message}`)
+      logger.warn(`PrometheusLens: failed to list services: ${error.toString()}`)
     }
   }