Biased locking Obsoletion

[Patricio Chilano]

Hi all,

As discussed in 8231264, the idea was to switch biased locking to false 
by default and deprecate all related flags with the intent to remove the 
code in a future release unless compelling evidence showed that the code 
is worth maintaining.
I see there is only one issue that was filed since biased locking was 
disabled by default (https://github.com/openjdk/jdk/pull/542) that seems 
to have been addressed. As per 8231264 change, the code was set to be 
obsoleted in 16, so we are already in a position to remove biased 
locking code unless there are arguments for the contrary. The 
alternative would be to give more time and move biased locking 
obsoletion to a future release.
Let me know your thoughts.

Thanks,

Patricio