<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Work on this issue](https://contributors.gitlab.com/manage-issue?action=work&projectId=278964&issueIid=480201) - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=480201) </details> <!--IssueSummary end--> ## Summary Now that `parallel_project_export` feature has been rolled-out and the feature flag removed, we need to remove `ProjectExportWorker`. While it is still used in the codebase, the `ProjectTemplateExportWorker` extends `ProjectExportWorker` so we can remove the `ProjectExportWorker` by making `ProjectExportWorker` the base class. However, this will require refactoring a couple of specs which are still using `ProjectExportWorker`