RFR: 8278533: Remove some unused methods in c1_Instruction and c1_ValueMap

[Christian Hagedorn]

On Fri, 10 Dec 2021 12:33:38 GMT, Hamlin Li <mli at openjdk.org> wrote:

> This is a trivial patch to remove some unused methods in c1_Instruction and c1_ValueMap.

Looks good and trivial.

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Marked as reviewed by chagedorn (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/6798