[jdk11u-dev] RFR: 8263531: Remove unused buffer int

[Christoph Langer]

The change for JDK-8257001 left an obsolete int field. Remove it.

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

Commit messages:
 - Backport ca806ef31970e2d020e631d55b44cfe30e11c5ca

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/130/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=130&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8263531
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/130.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/130/head:pull/130

PR: https://git.openjdk.java.net/jdk11u-dev/pull/130