Fix: Remove 10s wait from contract verify

[MattWong-ca]

Description

• Now that waitConfirmations: 3 is added when deploying DealClient, the 10s wait before verifying the contract is not needed
• The 10s wait for DealInfo (2nd contract deploy) is still there, as during deploy that contract doesn't wait for block confirmations

Additional Information

• I have read the contributing docs (if this is your first contribution)
• This is not a duplicate of any existing pull request

Related Issues

Closes #{issue number}

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