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

fcitx5-qt: remove unused conditional block
https://github.com/void-linux/void-packages/pull/40601

Description:
added in #30714, but it seems to have never been necessary.

the test on this block always evaluates false because `XBPS_TARGET_NOATOMIC8` is never set, so it is never run (the variable is actually `XBPS_TARGET_NO_ATOMIC8`).

Because it was never active it should not change the resultant package on armv6 or other no atomic8 platforms.

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