RFR: 8258534: Epsilon: clean up unused includes

[Jie Fu]

On Fri, 11 Dec 2020 17:28:24 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Unfortunately, CLion makes the incorrect call here. `macros.hpp` is included to get access to `COMPILER1` and `COMPILER2` macros. So we cannot really remove that `#include`.

Hi @shipilev ,

Build tests passed on our Linux/x64 machines with this patch.
So I think the change is fine.
Am I missing something?

Thanks.

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PR: https://git.openjdk.java.net/jdk/pull/1745