remove dynamicComputeKeyName from node template
remove dynamicComputeKeyName from node template

it was added to deal with a lint error about not using arrow functions, but it never needed to be added. The watched keys are sufficient dependent keys for the computed property.

rancher/rancher#30506

westlywright/ui,rancherio/ui,rancher/ui,vincent99/ui,vincent99/ui,rancher/ui,rancher/ui,vincent99/ui,rancherio/ui,rancherio/ui,westlywright/ui,westlywright/ui