[Process] Remove deprecated methods
feature #12697 [3.0][Process] Remove deprecated methods (romainneutron)

This PR was merged into the 3.0-dev branch.

Discussion
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[3.0][Process] Remove deprecated methods

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT

Commits
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e2334d9 [Process] Remove deprecated methods