Remove Neonscan as default explorer from Neon EVM Devnet and Mainnet chains

[sukanyaparashar]

This PR is from Neon EVM's team to remove the native Neonscan explorer from the Neon EVM Devnet and Mainnet chain configurations.

[github-actions]

You successfully submitted a PR! Due to the amount of PRs coming in: we will only look at PRs that the CI is happy with. We can also not hold your hand getting the CI green - just look how others that where merged did it and RTFM. So as long as there is any CI check that reports an error - no human will look at this. You might be able to ask for some support after supporting the project - e.g. by sending funds to lists.eth. When you fixed things after a requested change - then you also need to (re-)request a review.

[ligi]

why the removal?
can you prove you are part of the team?

[sukanyaparashar]

why the removal? can you prove you are part of the team?

Hi, Thanks for looking into this. You can see from my profile https://github.com/sukanyaparashar that I am part of neonlabsorg.

We are migrating to Blockscout as our default block explorer and our team has decided to remove Neonscan completely and keep only Blockscout as our explorer.