Reverts #1541: do not attempt to mount /usr/lib/sysimage/rpm

[tbavelier]

What this PR does / why we need it:

• Reverts Mount /usr/lib/sysimage/rpm when using host SBOM feature #1541: the SBOM feature is not compatible with Bottlerocket nodes. When enabling this feature, kubelet tries to create /usr/lib/sysimage/rpm on the node if the directory does not exist, but /usr is read-only, thus causing the pod to not be scheduled

  Warning  Failed     12m                  kubelet            Error: failed to generate container "9ccab0256589e0b5c0aae5d8f0f32dad3912f67ebf1595883a02b473a32e06b1" spec: failed to apply OCI options: failed to mkdir "/usr/lib/sysimage/rpm": mkdir /usr/lib/sysimage: read-only file system

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.]

• Chart Version bumped
• Documentation has been updated with helm-docs (run: .github/helm-docs.sh)
• CHANGELOG.md has been updated
• Variables are documented in the README.md
• For Datadog Operator chart or value changes update the test baselines (run: make update-test-baselines)