Regarding CR 8008368 Remove MaxGCMinorPauseMillis

[Tao Mao]

Hi Bengt and Jon,

Since the flag is a product flag (which means it's been exposed to 
customers already), I wonder if we need to file a CCC request or something.

I googled "MaxGCMinorPauseMillis" and found some interesting blog 
articles and discussions, e.g. 
https://confluence.atlassian.com/display/ATLAS/Garbage+Collection+(GC)+Tuning+Guide#GarbageCollection(GC)TuningGuide-Determinesystemicrequirements

Thanks.
Tao