now that exchange api has been folded in with the rest of the m365 api, it doesn't make sense to maintain an options file with only exchange functionality. Since all calls in the file were used 1:1 with some api func, those options have been moved into their respective api funcs.
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#### Does this PR need a docs update or release note?
- [x] ⛔ No
#### Type of change
- [x] 🧹 Tech Debt/Cleanup
#### Issue(s)
* #1996
#### Test Plan
- [x] 💚 E2E
No logic changes, just code movement.
Begins the process ofcentralizing the graph package in pkg/services/m365, instead of dividing up the funcs between different connector subpackages. While the ownership of apis in each connector subpackage does make sense, this movement will reduce duplication, centralize import arrangements, and make it easy
to export usage of the api to sdk consumers.
---
#### Does this PR need a docs update or release note?
- [x] ⛔ No
#### Type of change
- [x] 🧹 Tech Debt/Cleanup
#### Issue(s)
* #1996
#### Test Plan
- [x] ⚡ Unit test
- [x] 💚 E2E
