When using OpenTelemetryCollector nodeSelector and later removing it, collector pod doesn't clean up the nodeSelector

[janario]

Component(s)

collector

What happened?

Description

When adding OpenTelemetryCollector.spec.nodeSelector and later removing it, it doesn't get applied to the collector Pods.

Steps to Reproduce

Scenario,

1. create an OpenTelemetryCollector with spec.nodeSelector
   a. it will create pods(from DaemonSet/Deployment/Statefulset) with the nodeSelector ✅
2. change OpenTelemetryCollector to remove nodeSelector
   a. it is not removed from pods(from DaemonSet/Deployment/Statefulset)
3. change OpenTelemetryCollector to add another nodeSelector (different key/value from step 1)
   a. it is adding another nodeSelector to the pod and keeping both (step 1 and step 3)

Expected Result

Collector Pods should reflect exactly the OpenTelemetryCollector.spec.nodeSelector

Actual Result

Collector Pods get nodeSelectors but never removed to reflect the OpenTelemetryCollector.spec.nodeSelector.

Kubernetes Version

1.26

Operator version

0.98.0

Collector version

0.98.0

Environment information

Environment

OS: (e.g., "Ubuntu 20.04")
Compiler(if manually compiled): (e.g., "go 14.2")

Log output

No response

Additional context

No response