Remove obsolete link

[Freekers]

The CryptoWarden guide hasn’t been updated in over a year and still references the deprecated testnet Newton instead of Galileo. I propose removing it to avoid confusion for newcomers.

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This change is 

[Copilot]

Pull Request Overview

This PR removes an outdated community guide link for the CryptoWarden validator node setup that references deprecated infrastructure, specifically the Newton testnet instead of the current Galileo testnet.

• Removes the CryptoWarden guide link to prevent user confusion
• Eliminates reference to deprecated Newton testnet infrastructure
• Cleans up the community Docker repository documentation

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