RFR (S): 8189801: Remove G1MarkingOverheadPercent

[Thomas Schatzl]

Hi all,

  can I have reviews for the removal of the develop option
G1MarkingOverheadPercent?

The code seems to have been unused for a long time, and particularly
the calculation of sleep_factor is pretty much broken.

Instead of trying to fix this small amount of code (that's develop only
anyway) I suggest to remove all of it.

CR:
https://bugs.openjdk.java.net/browse/JDK-8189801
Webrev:
http://cr.openjdk.java.net/~tschatzl/8189801/webrev/
Testing:
local compilation + testing

Thanks,
  Thomas