Remove deprecated progress_bar_refresh_rate from Trainer constructor

[daniellepintz]

What does this PR do?

Part of #12521.

resolves #9616

Does your PR introduce any breaking changes? If yes, please list them.

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[ananthsub]

I believe we should open an umbrella issue to track all of these breaking changes. In addition, these changes typically make for great first issues. As a result, they are nice vehicles to grow the wider developer community.

[rohitgr7]

nit

[tchaton]

LGTM !