feat!: finish mount/umount enter event gen support removal in kmod

[ekoops]

What type of PR is this?

Uncomment one (or more) /kind <> lines:

/kind bug

/kind cleanup

/kind design

/kind documentation

/kind failing-test

/kind test

/kind feature

Any specific area of the project related to this PR?

Uncomment one (or more) /area <> lines:

/area API-version

/area build

/area CI

/area driver-kmod

/area driver-bpf

/area driver-modern-bpf

/area libscap-engine-bpf

/area libscap-engine-gvisor

/area libscap-engine-kmod

/area libscap-engine-modern-bpf

/area libscap-engine-nodriver

/area libscap-engine-noop

/area libscap-engine-source-plugin

/area libscap-engine-savefile

/area libscap

/area libpman

/area libsinsp

/area tests

/area proposals

Does this PR require a change in the driver versions?

/version driver-API-version-major

/version driver-API-version-minor

/version driver-API-version-patch

/version driver-SCHEMA-version-major

/version driver-SCHEMA-version-minor

/version driver-SCHEMA-version-patch

What this PR does / why we need it:

This PR is part of #2588. It completes the partial drop of mount/umount generation support done in #2602.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Not bumping the driver schema version is currently a practice we are following as we will bump it in a single shot once we are done with the #2068 proposal.

/milestone 0.22.0

Does this PR introduce a user-facing change?:

feat!: finish `mount`/`umount` enter event gen support removal in kmod

[github-actions]

Please double check driver/SCHEMA_VERSION file. See versioning.

/hold

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.25%. Comparing base (3bc283c) to head (fe11521).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2625   +/-   ##
=======================================
  Coverage   78.25%   78.25%           
=======================================
  Files         294      294           
  Lines       31826    31826           
  Branches     4667     4667           
=======================================
  Hits        24905    24905           
  Misses       6921     6921           

Flag	Coverage Δ
libsinsp	78.25% <ø> (ø)

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[irozzo-1A]

/lgtm

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ekoops, irozzo-1A

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[ekoops]

/hold cancel