[perf-improv] No need to "await", save up extra API call(s)

[SanjalKatiyar]

No need to "await" here: https://github.com/red-hat-storage/odf-console/blob/master/packages/mco/features.ts#L130
If we do, "intervalId" (here: https://github.com/red-hat-storage/odf-console/blob/master/packages/mco/features.ts#L131) will not be set until above "await" resolves, which will eventually lead to "featureDetector" be executed once again.
Without "await", "intervalId" will be set immediately and as soon as "featureDetector" gets resolved for the first time it will clear the interval as well (preventing callback in "setInterval" from being executed).

[SanjalKatiyar]

cc @GowthamShanmugam (fyi)