Fix dead links for DDA v2alpha1 examples

[khewonc]

What does this PR do?

Fix dead links for example DDAs on https://github.com/DataDog/datadog-operator/blob/main/docs/configuration.v2alpha1.md. The Manifest with Logs and metrics collection enabled example file was removed entirely so I removed that link.

Motivation

https://github.com/DataDog/datadog-operator/issues/1176

Additional Notes

Anything else we should know when reviewing?

Minimum Agent Versions

Are there minimum versions of the Datadog Agent and/or Cluster Agent required?

• Agent: vX.Y.Z
• Cluster Agent: vX.Y.Z

Describe your test plan

Write there any instructions and details you may have to test your PR.

Checklist

• [x] PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
• [x] PR has a milestone or the qa/skip-qa label

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 59.16%. Comparing base (8981855) to head (d5327b4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1199   +/-   ##
=======================================
  Coverage   59.16%   59.16%           
=======================================
  Files         175      175           
  Lines       21944    21944           
=======================================
  Hits        12984    12984           
  Misses       8164     8164           
  Partials      796      796           

Flag	Coverage Δ
unittests	59.16% <ø> (ø)

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[datadog-datadog-prod-us1[bot]]

Software Composition Analysis

We found vulnerabilities in the following libraries (compared 7f4a27e against a900de1):

• :black_circle: [email protected]
• :link: 4 more vulnerabilities exist