refactor: handle operator set dereg

Author: stevennevins

src/RegistryCoordinator.sol

@@ -555,31 +555,40 @@ contract RegistryCoordinator is
         ) {
             // If using operator sets, check for non-M2 quorums
             if (isUsingOperatorSets()) {
-                uint32[] memory nonM2OperatorSetIds = new uint32[](quorumNumbers.length);
-                uint256 numNonM2Quorums;
-
-                // Check each quorum's stake type
-                for (uint256 i = 0; i < quorumNumbers.length; i++) {
-                    uint8 quorumNumber = uint8(quorumNumbers[i]);
-                    if (isM2Quorum[quorumNumber]) {
-                        nonM2OperatorSetIds[numNonM2Quorums++] = quorumNumber;
-                    }
-                }
-
-                // If any non-M2 quorums found, deregister from AVS
-                if (numNonM2Quorums > 0) {
-                    // Resize array to exact size needed
-                    assembly {
-                        mstore(nonM2OperatorSetIds, numNonM2Quorums)
-                    }
-                    serviceManager.deregisterOperatorFromOperatorSets(operator, nonM2OperatorSetIds);
-                }
+                _handleOperatorSetDeregistration(operator, quorumNumbers);
             }
 
             _deregisterOperator({operator: operator, quorumNumbers: quorumNumbers});
         }
     }
 
+    /**
+     * @notice Helper function to handle operator set deregistration for non-M2 quorums
+     * @param operator The operator to deregister
+     * @param quorumNumbers The quorum numbers to check
+     */
+    function _handleOperatorSetDeregistration(address operator, bytes memory quorumNumbers) internal {
+        uint32[] memory nonM2OperatorSetIds = new uint32[](quorumNumbers.length);
+        uint256 numNonM2Quorums;
+
+        // Check each quorum's stake type
+        for (uint256 i = 0; i < quorumNumbers.length; i++) {
+            uint8 quorumNumber = uint8(quorumNumbers[i]);
+            if (isM2Quorum[quorumNumber]) {
+                nonM2OperatorSetIds[numNonM2Quorums++] = quorumNumber;
+            }
+        }
+
+        // If any non-M2 quorums found, deregister from AVS
+        if (numNonM2Quorums > 0) {
+            // Resize array to exact size needed
+            assembly {
+                mstore(nonM2OperatorSetIds, numNonM2Quorums)
+            }
+            serviceManager.deregisterOperatorFromOperatorSets(operator, nonM2OperatorSetIds);
+        }
+    }
+
     /**
      *
      *                         EXTERNAL FUNCTIONS - OWNER