refactor: remove 0 check in recovered address in BatcherPaymentService (#1064)

Author: MarcosNicolau

contracts/scripts/anvil/state/alignedlayer-deployed-anvil-state.json

@@ -282,21 +282,19 @@ contract BatcherPaymentService is
             revert InvalidMaxFee(signatureData.maxFee, feePerProof);
         }
 
-        bytes32 structHash =  keccak256(abi.encode(
-            noncedVerificationDataTypeHash,
-            leaf,
-            signatureData.nonce,
-            signatureData.maxFee
-        ));
+        bytes32 structHash = keccak256(
+            abi.encode(
+                noncedVerificationDataTypeHash,
+                leaf,
+                signatureData.nonce,
+                signatureData.maxFee
+            )
+        );
 
         bytes32 hash = _hashTypedDataV4(structHash);
 
         address signer = ECDSA.recover(hash, signatureData.signature);
 
-        if (signer == address(0)) {
-            revert InvalidSignature();
-        }
-
         UserInfo storage signerData = userData[signer];
 
         if (signerData.nonce != signatureData.nonce) {