op-node: Remove beta-1 config

[ajsutton]

Description

Remove beta-1 config. --network=beta-1 is no longer supported as the network has been shut down.

Metadata

• Fixes https://linear.app/optimism/issue/CLI-3887/remove-beta-1-network-definition

TODOs

• Author or reviewer has added an entry to the current release notes draft, if appropriate.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 44769bd

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[netlify]

✅ Deploy Preview for opstack-docs canceled.

Name	Link
🔨 Latest commit	44769bd
🔍 Latest deploy log	https://app.netlify.com/sites/opstack-docs/deploys/6448606d6d383e0008eada4d

[trianglesphere]

nuke it

[mergify]

This PR has been added to the merge queue, and will be merged soon.

[mergify]

This PR is next in line to be merged, and will be merged as soon as checks pass.