feat(rust-libp2p): remove obsolete job

[thomaseizinger]

Summary

This component is being removed from our repository so we need to delete its job: libp2p/rust-libp2p#4694

Why do you need this?

What else do we need to know?

DRI: myself

Reviewer's Checklist

• It is clear where the request is coming from (if unsure, ask)
• All the automated checks passed
• The YAML changes reflect the summary of the request
• The Terraform plan posted as a comment reflects the summary of the request

[github-actions]

Before merge, verify that all the following plans are correct. They will be applied as-is after the merge.

Terraform plans

libp2p

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  ~ update in-place

Terraform will perform the following actions:

  # github_branch_protection.this["rust-libp2p:master"] will be updated in-place
  ~ resource "github_branch_protection" "this" {
        id                              = "MDIwOkJyYW5jaFByb3RlY3Rpb25SdWxlMjM0NjQ0MA=="
        # (11 unchanged attributes hidden)

      ~ required_status_checks {
          ~ contexts = [
              - "Test libp2p-wasm-ext",
                # (58 unchanged elements hidden)
            ]
            # (1 unchanged attribute hidden)
        }

        # (1 unchanged block hidden)
    }

Plan: 0 to add, 1 to change, 0 to destroy.

[mxinden]

👍