Remove container all from description

[khewonc]

What does this PR do?

Removes the container name all from the container overrides description

Motivation

Support case

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

Describe the DatadogAgent CRD and check that the description was updated to remove references to the all container

Checklist

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

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.70%. Comparing base (a33ab18) to head (fadd88b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1497   +/-   ##
=======================================
  Coverage   48.70%   48.70%           
=======================================
  Files         224      224           
  Lines       19845    19845           
=======================================
  Hits         9666     9666           
  Misses       9670     9670           
  Partials      509      509           

Flag	Coverage Δ
unittests	48.70% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
api/datadoghq/v2alpha1/datadogagent_types.go	100.00% <ø> (ø)

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