Remove duplicate Cancun row from upgrades table (#1282)

* Remove duplicate Cancun row from upgrades table

* Update README.md

---------

Co-authored-by: Sam Wilson <[email protected]>

Author: gumb0

README.md

@@ -12,8 +12,7 @@ This repository contains the specifications related to the Ethereum execution cl
 | Version and Code Name | Block No. | Released | Incl EIPs | Specs | Blog |
 |-----------------------|-----------|----------|-----------|-------|-------|
 | Prague | 22431084 | 2025-05-07 | [EIP-2537] <br> [EIP-2935] <br> [EIP-6110] <br> [EIP-7002] <br> [EIP-7251] <br> [EIP-7549] <br> [EIP-7623] <br> [EIP-7685] <br> [EIP-7691] <br> [EIP-7702] | [Specs](https://eips.ethereum.org/EIPS/eip-7600) | [Blog](https://blog.ethereum.org/2025/04/23/pectra-mainnet) |
-| Cancun | 19426587 | 2024-03-13 | [EIP-1153](https://eips.ethereum.org/EIPS/eip-1153) </br> [EIP-4788](https://eips.ethereum.org/EIPS/eip-4788)</br> [EIP-4844](https://eips.ethereum.org/EIPS/eip-4844)</br> [EIP-5656](https://eips.ethereum.org/EIPS/eip-5656)</br> [EIP-6780](https://eips.ethereum.org/EIPS/eip-6780) </br> [EIP-7044](https://eips.ethereum.org/EIPS/eip-7044) </br> [EIP-7045](https://eips.ethereum.org/EIPS/eip-7045) </br> [EIP-7514](https://eips.ethereum.org/EIPS/eip-7514) </br> [EIP-7516](https://eips.ethereum.org/EIPS/eip-7516)| [Specification](https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/cancun.md) | [Blog](https://blog.ethereum.org/2024/02/27/dencun-mainnet-announcement) |
-| Cancun | 19426587 | 2024-03-13<br />(1710338135) | [EIP-1153](https://eips.ethereum.org/EIPS/eip-1153) </br> [EIP-4788](https://eips.ethereum.org/EIPS/eip-4788)</br> [EIP-4844](https://eips.ethereum.org/EIPS/eip-4844)</br> [EIP-5656](https://eips.ethereum.org/EIPS/eip-5656)</br> [EIP-6780](https://eips.ethereum.org/EIPS/eip-6780)</br> [EIP-7516](https://eips.ethereum.org/EIPS/eip-7516)| [Specification](https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/cancun.md) | [Blog](https://blog.ethereum.org/2024/02/27/dencun-mainnet-announcement) |
+| Cancun | 19426587 | 2024-03-13<br />(1710338135) | [EIP-1153](https://eips.ethereum.org/EIPS/eip-1153) </br> [EIP-4788](https://eips.ethereum.org/EIPS/eip-4788)</br> [EIP-4844](https://eips.ethereum.org/EIPS/eip-4844)</br> [EIP-5656](https://eips.ethereum.org/EIPS/eip-5656)</br> [EIP-6780](https://eips.ethereum.org/EIPS/eip-6780) </br> [EIP-7044](https://eips.ethereum.org/EIPS/eip-7044) </br> [EIP-7045](https://eips.ethereum.org/EIPS/eip-7045) </br> [EIP-7514](https://eips.ethereum.org/EIPS/eip-7514) </br> [EIP-7516](https://eips.ethereum.org/EIPS/eip-7516)| [Specification](https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/cancun.md) | [Blog](https://blog.ethereum.org/2024/02/27/dencun-mainnet-announcement) |
 | Shanghai | 17034870 | 2023-04-12<br/>(1681338455) | [EIP-3651](https://eips.ethereum.org/EIPS/eip-3651) <br/> [EIP-3855](https://eips.ethereum.org/EIPS/eip-3855) <br/> [EIP-3860](https://eips.ethereum.org/EIPS/eip-3860) <br/> [EIP-4895](https://eips.ethereum.org/EIPS/eip-4895) | [Specification](https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/shanghai.md) | [Blog](https://blog.ethereum.org/2023/03/28/shapella-mainnet-announcement) |
 | Paris | 15537394 | 2022-09-15 | [EIP-3675](https://eips.ethereum.org/EIPS/eip-3675) <br/> [EIP-4399](https://eips.ethereum.org/EIPS/eip-4399) | [Specification](https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md) | [Blog](https://blog.ethereum.org/2022/08/24/mainnet-merge-announcement) |
 | Gray Glacier | 15050000 | 2022-06-30 | [EIP-5133](https://eips.ethereum.org/EIPS/eip-5133) | [Specification](./network-upgrades/mainnet-upgrades/gray-glacier.md) | [Blog](https://blog.ethereum.org/2022/06/16/gray-glacier-announcement/) |