chore: remove deprecrated kuttl tests from repo

[jgwest]

What type of PR is this?
/kind cleanup

What does this PR do / why we need it:

• This PR removes the now deprecated kuttl tests from the repository

Have you updated the necessary documentation?

• Documentation update is required by this PR.
• Documentation has been updated.

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[olivergondza]

Yay 🍾

[jgwest]

/retest

[jgwest]

�[38;5;9m�[1mSummarizing 1 Failure:�[0m
  �[38;5;9m[FAIL]�[0m �[0mGitOps Operator Sequential E2E Tests �[38;5;243m1-084_validate_prune_templates �[38;5;9m�[1m[It] validates that resources with duplicate GVKs can be pruned successfully with local sync�[0m
  �[38;5;243m/go/src/github.com/redhat-developer/gitops-operator/test/openshift/e2e/ginkgo/sequential/1-084_validate_prune_templates.go:173�[0m

/retest