New comment by r-ricci on void-packages repository

https://github.com/void-linux/void-packages/pull/38986#issuecomment-1232941831

Comment:
> Disable ccache compression is NOT nice.

This PR doesn't disable compression. As I said, ccache enables compression by default [since version 4.0](https://ccache.dev/releasenotes.html#_ccache_4_0).
Even if you want ccache to perform compression, this variable is redundant.
Removing it changes nothing unless you add `compression = false` to `hostdir/ccache/ccache.conf`.