RFR: 8293109: Remove unused methods in Compiler

[Johan Sjölén]

Hi,

May I have a review regarding this PR? It removes some unused code which I found. All of this code is from "Initial load".

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

Commit messages:
 - Remove unused code

Changes: https://git.openjdk.org/jdk/pull/10082/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10082&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293109
  Stats: 35 lines in 2 files changed: 0 ins; 35 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/10082.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10082/head:pull/10082

PR: https://git.openjdk.org/jdk/pull/10082