Remove the delegationApprover prompt in Operator Registration (not yet supported)

[wesfloyd]

Describe the bug

Per our current CLI implementation, the user is prompted "Do you want to gate stakers approval?"

eigenlayer/cli/operator/config/create.go

Line 90 in 0ae47b3

gateApproval, err := p.Confirm("Do you want to gate stakers approval?")

Per the chat with Jeffrey - this feature is not currently fully implemented (specifically the off chain components) and there is no specific ETA for delivery of this feature. This leads to user confusion.

To Reproduce
Execute the eigenlayer operator register command. Observe the user is prompted "Do you want to gate stakers approval?"

Expected behavior
The user should Not be prompted to gate staker approval. Please remove this step in operator registration.