feat(SpokePool): Remove depositExclusive (#642)

This function was used to express exclusivity as a period but its no longer useful since depositV3 now allows caller to express exclusivityPeriod instead of exclusivityDeadline

Author: nicholaspai

contracts/SpokePool.sol

@@ -720,74 +720,6 @@ abstract contract SpokePool is
         );
     }
 
-    /**
-     * @notice DEPRECATED. Use depositV3() instead.
-     * @notice Submits deposit and sets exclusivityDeadline to current time plus some offset. This function is
-     * designed to be called by users who want to set an exclusive relayer for some amount of time after their deposit
-     * transaction is mined.
-     * @notice If exclusivtyDeadlineOffset > 0, then exclusiveRelayer must be set to a valid address, which is a
-     * requirement imposed by depositV3().
-     * @param depositor The account credited with the deposit who can request to "speed up" this deposit by modifying
-     * the output amount, recipient, and message.
-     * @param recipient The account receiving funds on the destination chain. Can be an EOA or a contract. If
-     * the output token is the wrapped native token for the chain, then the recipient will receive native token if
-     * an EOA or wrapped native token if a contract.
-     * @param inputToken The token pulled from the caller's account and locked into this contract to
-     * initiate the deposit. The equivalent of this token on the relayer's repayment chain of choice will be sent
-     * as a refund. If this is equal to the wrapped native token then the caller can optionally pass in native token as
-     * msg.value, as long as msg.value = inputTokenAmount.
-     * @param outputToken The token that the relayer will send to the recipient on the destination chain. Must be an
-     * ERC20.
-     * @param inputAmount The amount of input tokens to pull from the caller's account and lock into this contract.
-     * This amount will be sent to the relayer on their repayment chain of choice as a refund following an optimistic
-     * challenge window in the HubPool, plus a system fee.
-     * @param outputAmount The amount of output tokens that the relayer will send to the recipient on the destination.
-     * @param destinationChainId The destination chain identifier. Must be enabled along with the input token
-     * as a valid deposit route from this spoke pool or this transaction will revert.
-     * @param exclusiveRelayer The relayer that will be exclusively allowed to fill this deposit before the
-     * exclusivity deadline timestamp.
-     * @param quoteTimestamp The HubPool timestamp that is used to determine the system fee paid by the depositor.
-     *  This must be set to some time between [currentTime - depositQuoteTimeBuffer, currentTime]
-     * where currentTime is block.timestamp on this chain or this transaction will revert.
-     * @param fillDeadline The deadline for the relayer to fill the deposit. After this destination chain timestamp,
-     * the fill will revert on the destination chain. Must be set between [currentTime, currentTime + fillDeadlineBuffer]
-     * where currentTime is block.timestamp on this chain or this transaction will revert.
-     * @param exclusivityPeriod Added to the current time to set the exclusive relayer deadline,
-     * which is the deadline for the exclusiveRelayer to fill the deposit. After this destination chain timestamp,
-     * anyone can fill the deposit.
-     * @param message The message to send to the recipient on the destination chain if the recipient is a contract.
-     * If the message is not empty, the recipient contract must implement handleV3AcrossMessage() or the fill will revert.
-     */
-    function depositExclusive(
-        address depositor,
-        address recipient,
-        address inputToken,
-        address outputToken,
-        uint256 inputAmount,
-        uint256 outputAmount,
-        uint256 destinationChainId,
-        address exclusiveRelayer,
-        uint32 quoteTimestamp,
-        uint32 fillDeadline,
-        uint32 exclusivityPeriod,
-        bytes calldata message
-    ) public payable {
-        depositV3(
-            depositor.toBytes32(),
-            recipient.toBytes32(),
-            inputToken.toBytes32(),
-            outputToken.toBytes32(),
-            inputAmount,
-            outputAmount,
-            destinationChainId,
-            exclusiveRelayer.toBytes32(),
-            quoteTimestamp,
-            fillDeadline,
-            exclusivityPeriod,
-            message
-        );
-    }
-
     /**
      * @notice Depositor can use this function to signal to relayer to use updated output amount, recipient,
      * and/or message.