Deprecate log_gpu_memory, gpu_metrics, and util funcs in favor of DeviceStatsMonitor callback

[daniellepintz]

What does this PR do?

Deprecate log_gpu_memory from Trainer constructor, deprecate gpu_metrics from LoggerConnector, and deprecate some util functions from utilities/memory.py.

These are all replaced by the DeviceStatsCallback which calls get_device_stats on the Accelerator interface #9712

Part of #9032

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[codecov]

Codecov Report

Merging #9921 (d6dabc2) into master (6feda08) will decrease coverage by 4%.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master   #9921    +/-   ##
=======================================
- Coverage      93%     89%    -4%     
=======================================
  Files         179     179            
  Lines       15805   15808     +3     
=======================================
- Hits        14648   14030   -618     
- Misses       1157    1778   +621     

[tchaton]

LGTM !

[kaushikb11]

LGTM!