There's a merged pull request on the void-packages repository

cgminer: remove package
https://github.com/void-linux/void-packages/pull/36428

Description:
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cgminer:
- Upstream is archived and hasn't had a commit or release since 2018
- Template last touched in 2020 (to update cflags), last updated in 2018
- Popcorn lists no usage (out of 75)

~~libbitcoin-*:~~
- ~~unused libraries~~
- ~~excludes libbitcoin-secp256k1, which is used by electrum~~

#### Testing the changes
- I tested the changes in this PR: **YES**

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