RFR(xs): 8193909: Obsolete(remove) Co-operative Memory Management (CMM)

[sangheon.kim]

Hi all,

Could I have some reviews for CMM removal?
This is closed CR but some public codes also need small modifications. 
This CR is for removing stuff related to an Oracle JDK module/package.
Changes are just removing CMM from lists or in a test to skip the 
testing logic.

CR: https://bugs.openjdk.java.net/browse/JDK-8193909
Webrev: http://cr.openjdk.java.net/~sangheki/8193909/webrev.0
Testing: hs-tier1~5, jdk1~3, open/test/jdk:jdk_core

Thanks,
Sangheon