remove ERC20 enter/exits for now

Author: anna-carroll

src/Passage.sol

@@ -49,17 +49,6 @@ contract Passage {
         emit Enter(rollupChainId, address(0), rollupRecipient, msg.value);
     }
 
-    /// @notice Allows ERC20s to enter the rollup.
-    /// @param rollupChainId - The rollup chain to enter.
-    /// @param rollupRecipient - The recipient of the Ether on the rollup.
-    /// @param token - The address of the ERC20 token on the Host.
-    /// @param amount - The amount of the ERC20 token to transfer to the rollup.
-    /// @custom:emits Enter indicating the amount of tokens to mint on the rollup & its recipient.
-    function enter(uint256 rollupChainId, address token, address rollupRecipient, uint256 amount) external payable {
-        IERC20(token).transferFrom(msg.sender, address(this), amount);
-        emit Enter(rollupChainId, token, rollupRecipient, amount);
-    }
-
     /// @notice Allows the admin to withdraw ETH or ERC20 tokens from the contract.
     /// @dev Only the admin can call this function.
     function withdraw(address token, address recipient, uint256 amount) external {
@@ -96,34 +85,11 @@ contract RollupPassage {
         hostPassage = _hostPassage;
     }
 
-    /// @notice Allows ERC20s to enter the rollup from L1.
-    /// @param token - The address of the L1 ERC20 token to mint a representation for.
-    /// @param rollupRecipient - The recipient of the ERC20 tokens on the rollup, specified by the sender on L1.
-    /// @param amount - The amount of the ERC20 token to mint on the Rollup, corresponding to the amount locked on L1.
-    /// @custom:emits Exit indicating the the desired recipient on the host chain.
-    function enter(address token, address rollupRecipient, uint256 amount) external {
-        // TODO: important that no code is deployed to hostPassage address on the rollup :think:
-        if (msg.sender != hostPassage) revert OnlyHostPassage();
-        // TODO: IERC20(token).mint(recipient, amount);
-        emit Enter(token, rollupRecipient, amount);
-    }
-
     /// @notice Allows native Ether to exit the rollup.
     /// @dev Rollup node will burn the msg.value.
     /// @param recipient - The desired recipient of the Ether on the host chain.
     /// @custom:emits Exit indicating the amount of Ether to burn on the rollup & the recipient on the host chain.
     function exit(address recipient) public payable {
         emit Exit(address(0), recipient, msg.value);
     }
-
-    /// @notice Allows ERC20s to exit the rollup.
-    /// @param recipient - The desired recipient of the ERC20s on the host chain.
-    /// @param token - The address of the ERC20 token on the Rollup.
-    /// @param amount - The amount of the ERC20 token to burn on the Rollup.
-    /// @custom:emits Exit indicating the the desired recipient on the host chain.
-    function exit(address token, address recipient, uint256 amount) external payable {
-        IERC20(token).transferFrom(msg.sender, address(this), amount);
-        // TODO: IERC20(token).burn(msg.sender, amount);
-        emit Exit(token, recipient, amount);
-    }
 }