RFR(T): 8217716: Remove dead code in PhaseChaitin

[Tobias Hartmann]

Hi Claes,

looks good and trivial.

Best regards,
Tobias

On 24.01.19 10:58, Claes Redestad wrote:
> Hi,
> 
> various methods and fields in PhaseChaitin and friends are unused and
> should be removed.
> 
> Bug:    https://bugs.openjdk.java.net/browse/JDK-8217716
> Webrev: http://cr.openjdk.java.net/~redestad/8217716/open.00/
> 
> At least one of the unused methods (PhaseChaitin::Pre_Simplify)
> are linger in product build, so cleaning this up marginally improves
> static footprint (-4Kb).
> 
> Testing: tier1+2
> 
> Thanks!
> 
> /Claes