[OpenJDK 2D-Dev] RFR: 8262497: Delete unused utility methods in ICC_Profile class

[Sergey Bylokhov]

A few utility methods in the ICC_Profile class are unused since 1997, I think we can delete them.

-------------

Commit messages:
 - Update ICC_Profile.java

Changes: https://git.openjdk.java.net/jdk/pull/2764/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2764&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8262497
  Stats: 53 lines in 1 file changed: 0 ins; 51 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2764.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2764/head:pull/2764

PR: https://git.openjdk.java.net/jdk/pull/2764