Refactor existing uses of `noAwait` to use `void` operator instead.

This is currently the recommended practice to call async functions
without consuming the return values at Google.

Change-Id: I34fbcee0c6ea01e7019f36f72073b016a4c57cf6
Reviewed-on: https://gerrit-review.googlesource.com/c/plugins/code-owners/+/433437
Reviewed-by: Dmitrii Filippov <dmfilippov@google.com>
Tested-by: Zuul <zuul-63@gerritcodereview-ci.iam.gserviceaccount.com>

web/code-owners-service.ts

diff --git a/web/code-owners-service.ts b/web/code-owners-service.ts
index 5f44337..9e38a6b 100644
--- a/web/code-owners-service.ts
+++ b/web/code-owners-service.ts
@@ -56,8 +56,6 @@
   maxConcurrentRequests?: number;
 }
 
-function noAwait(_promise: Promise<unknown>) {}
-
 /**
  * Service for the data layer used in the plugin UI.
  */
@@ -175,7 +173,7 @@
       // new status - it is expected, that after several retry a status
       // for the newest patchset is returned
       this.reset();
-      noAwait(this.prefetch());
+      void this.prefetch()
       return await this.getStatus();
     }
     return status;