<AWT Dev> RFR: 8253965: Delete the outdated java.awt.PeerFixer class

[Sergey Bylokhov]

This bug is extracted from the JDK-8251123. Instead of specifying this old/unused class, I suggest to delete it.

This is the comment added to this class in JDK 1.1.1:

==============================
/*
 * In JDK 1.1.1, the pkg private class java.awt.PeerFixer was moved to
 * become an inner class of ScrollPane, which broke serialization
 * for ScrollPane objects using JDK 1.1.
 * Instead of moving it back out here, which would break all JDK 1.1.x
 * releases, we keep PeerFixer in both places. Because of the scoping rules,
 * the PeerFixer that is used in ScrollPane will be the one that is the
 * inner class. This pkg private PeerFixer class below will only be used
 * if the Java 2 platform is used to deserialize ScrollPane objects that were serialized
 * using JDK1.1
 */

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

Commit messages:
 - Update ScrollPane.java

Changes: https://git.openjdk.java.net/jdk/pull/493/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=493&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8253965
  Stats: 49 lines in 1 file changed: 0 ins; 49 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/493.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/493/head:pull/493

PR: https://git.openjdk.java.net/jdk/pull/493