Remove warning about `taint`

[jli]

The warning seems to say that the taint config is also managed outside of Terraform, so the resource could be recreated if this config is used. However, I didn't experience this in my testing.

I tested this like so:

• Added taint config on my cluster_node_pool to mark a preemptible node pool with preemptible=true:NoSchedule.
• Applied terraform config, which recreated the node pool with this taint.
• Manually modified node taints, including removing the preemptible taint and adding other taints.
• Reran terraform, which didn't report any diffs or try to recreate the node pool.

I think this is fine because this taint config applies at the node pool level, but dynamic taints occur at the node level. Or, am I misunderstanding the warning?

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[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 1 file changed, 1 insertion(+), 6 deletions(-)) Terraform Beta: Diff ( 1 file changed, 1 insertion(+), 6 deletions(-))

[jli]

I tested with google_container_node_pool only. But iiuc, google_container_cluster also creates a node pool which this config option applies to, so I think it would also apply there? (very low confidence on that though)

Let me know if you'd like me to revert back to the original and just mention that it's okay for the node pool resource?