[OpenJDK 2D-Dev] RFR: 8254863: Delete code leftover from old fixes

[Sergey Bylokhov]

The fix for JDK-4893408 adds a special code to handle the "PYCC.pf" color profile for the "kernel java":
https://bugs.openjdk.java.net/browse/JDK-4893408?focusedCommentId=12284308&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-12284308
The "kernel java" support was removed in jdk7 in JDK-7016724 but the special code in the ICC_Profile.java still exists.

After the fix for JDK-8175984 a few methods became unused:
 - CMSManager#freeProfile()
 - ProfileDeferralMgr#unregisterDeferral()

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Commit messages:
 - Update ICC_Profile.java
 - Initial fix

Changes: https://git.openjdk.java.net/jdk/pull/691/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=691&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8254863
  Stats: 64 lines in 5 files changed: 2 ins; 52 del; 10 mod
  Patch: https://git.openjdk.java.net/jdk/pull/691.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/691/head:pull/691

PR: https://git.openjdk.java.net/jdk/pull/691