[Host Profiler] Remove seccomp configmap and use profile baked into image

[theomagellan]

What this PR does / why we need it:

Leverages the seccomp profile now bundled in the Host Profiler's image.
DataDog/datadog-agent#51545

Before this, the seccomp profile was living in 3 different places:

• datadog-operator
• datadog's helm-charts
• Standalone documentation

Bundling the seccomp directly in the image and using it as an initContainer enables us the version the seccomp profile with profiler versions and maintain only one copy.

Which issue this PR fixes

(optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged)

• fixes #

Special notes for your reviewer:

Checklist

[Place an '[x]' (no spaces) in all applicable fields. Please remove unrelated fields.]

• All commits are signed and show as "Verified" on GitHub (see: signing commits)
• Chart Version semver bump label has been added (use <chartName>/minor-version, <chartName>/patch-version, or <chartName>/no-version-bump)
• For datadog or datadog-operator chart or value changes, update the test baselines (run: make update-test-baselines)
• For datadog chart changes, received ✅ from a member of your team

GitHub CI takes care of the below, but are still required:

• Documentation has been updated with helm-docs (run: .github/helm-docs.sh)
• CHANGELOG.md has been updated
• Variables are documented in the README.md

[datadog-prod-us1-6]

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⚠️ Warnings

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[theomagellan]

@codex review

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[r1viollet]

LGTM
Thanks for this significant change.
Minor notes: we might want to document a way to remove secomp if needed. I am not sure where this should live.