feat: remove onlyRelayer modifier

packages/contracts/contracts/L1/messaging/L1CrossDomainMessenger.sol

@@ -78,26 +78,6 @@ contract L1CrossDomainMessenger is
     {}
 
 
-    /**********************
-     * Function Modifiers *
-     **********************/
-
-    /**
-     * Modifier to enforce that, if configured, only the OVM_L2MessageRelayer contract may
-     * successfully call a method.
-     */
-    modifier onlyRelayer() {
-        address relayer = resolve("OVM_L2MessageRelayer");
-        if (relayer != address(0)) {
-            require(
-                msg.sender == relayer,
-                "Only OVM_L2MessageRelayer can relay L2-to-L1 messages."
-            );
-        }
-        _;
-    }
-
-
     /********************
      * Public Functions *
      ********************/
@@ -221,7 +201,6 @@ contract L1CrossDomainMessenger is
     )
         public
         nonReentrant
-        onlyRelayer
         whenNotPaused
     {
         bytes memory xDomainCalldata = Lib_CrossDomainUtils.encodeXDomainCalldata(

packages/contracts/test/contracts/L1/messaging/L1CrossDomainMessenger.spec.ts

@@ -521,21 +521,5 @@ describe('L1CrossDomainMessenger', () => {
         ).to.not.be.reverted
       })
     })
-
-    describe('onlyRelayer', () => {
-      it('when the OVM_L2MessageRelayer address is set, should revert if called by a different account', async () => {
-        // set to a random NON-ZERO address
-        await AddressManager.setAddress(
-          'OVM_L2MessageRelayer',
-          '0x1234123412341234123412341234123412341234'
-        )
-
-        await expect(
-          L1CrossDomainMessenger.relayMessage(target, sender, message, 0, proof)
-        ).to.be.revertedWith(
-          'Only OVM_L2MessageRelayer can relay L2-to-L1 messages.'
-        )
-      })
-    })
   })
 })

packages/message-relayer/src/service.ts

@@ -154,20 +154,6 @@ export class MessageRelayerService extends BaseService<MessageRelayerOptions> {
       await sleep(this.options.pollingInterval)
 
       try {
-        // Check that the correct address is set in the address manager
-        const relayer = await this.state.Lib_AddressManager.getAddress(
-          'OVM_L2MessageRelayer'
-        )
-        // If it is address(0), then message relaying is not authenticated
-        if (relayer !== ethers.constants.AddressZero) {
-          const address = await this.options.l1Wallet.getAddress()
-          if (relayer !== address) {
-            throw new Error(
-              `OVM_L2MessageRelayer (${relayer}) is not set to message-passer EOA ${address}`
-            )
-          }
-        }
-
         this.logger.info('Checking for newly finalized transactions...')
         if (
           !(await this._isTransactionFinalized(