Remove auto flush

[dhindrik]

No description provided.

[IeuanWalker]

My only concern with this is missing telemetry when the app crashes.

From my understanding Flush is what sends the telemetry to application insights.

Does OnSleep always gets called even if the app crashes? If not it would be best to add a call to Flush in the HandleCrash method.

Is there any other situations where the app can be killed and OnSleep not triggered? (not used/ looked into the event much before)

Personally i havnt seen any performance issues using this, so not sure if this is preemptive optimising with little evidence, that could potentially cause issues

[dhindrik]

That is the reason I added flush everywhere from the beginning.

Sleep will not be called when the app crash, at lest you cannot trust it to be called.

I have tried to add Flush in the HandleCrash method, and it seems to work. But I will do more testing before (if I do) I merge this PR.