neha_gupta a09f93aef7
remove corso start event (#4432)
<!-- PR description-->

remove code to send `Corso start` event. 

#### Does this PR need a docs update or release note?

- [ ]  No

#### Type of change

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- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

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* https://github.com/alcionai/corso/issues/4439

#### Test Plan

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- [ ] 💪 Manual
2023-10-09 18:03:17 +00:00
..
2023-10-09 18:03:17 +00:00