Remove leftover from query.sh

[yubiuser]

What does this PR aim to accomplish?:

Cleans query.sh from a single leftover. The -adlist option was removed by #3035

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[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/pi-hole-ftl-v5-20-1-web-v5-18-1-and-core-v5-15-released/60495/1