Update checkpoint-sync.md (#3831)

Remove infura checkpoint sync instructions.


Co-authored-by: Adam Patacchiola <aep600@gmail.com>
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Madman600 2023-01-16 03:42:08 +00:00 committed by realbigsean
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@ -48,17 +48,6 @@ The Ethereum community provides various [public endpoints](https://eth-clients.g
lighthouse bn --checkpoint-sync-url https://example.com/ ...
```
### Use Infura as a remote beacon node provider
You can use Infura as the remote beacon node provider to load the initial checkpoint state.
1. Sign up for the free Infura ETH2 API using the `Create new project tab` on the [Infura dashboard](https://infura.io/dashboard).
2. Copy the HTTPS endpoint for the required network (Mainnet/Prater).
3. Use it as the url for the `--checkpoint-sync-url` flag. e.g.
```
lighthouse bn --checkpoint-sync-url https://<PROJECT-ID>:<PROJECT-SECRET>@eth2-beacon-mainnet.infura.io ...
```
## Backfilling Blocks
Once forwards sync completes, Lighthouse will commence a "backfill sync" to download the blocks