Remove an error log output that was presumably leftover from debugging

[PromoFaux]

By submitting this pull request, I confirm the following:

• I have read and understood the contributors guide, as well as this entire template.
• I have made only one major change in my proposed changes.
• I have commented my proposed changes within the code.
• I have tested my proposed changes, and have included unit tests where possible.
• I am willing to help maintain this change if there are issues with it later.
• I give this submission freely and claim no ownership.
• It is compatible with the EUPL 1.2 license
• I have squashed any insignificant commits. (git rebase)

---

What does this PR aim to accomplish?:

With this line, this gets printed to the error log every time the page is loaded, looks to just be debug output, I might be wrong!

2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr: Array
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr: (
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:     [default-light2] => Array
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:         (
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [0] => Pi-hole default theme (light, default)
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [1] =>
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [2] => default-light
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [3] => minimal
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [4] => blue
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:         )
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:     [default-dark] => Array
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:         (
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [0] => Pi-hole midnight theme (dark)
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [1] => 1
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [2] => default-dark
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [3] => polaris
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [4] => polaris
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:         )
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:     [default-dark2] => Array
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:         (
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [0] => Pi-hole afternoon theme (dark)
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [1] => 1
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [2] => default-dark
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [3] => futurico
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:             [4] => futurico
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr:         )
2020-05-18 16:57:14: (mod_fastcgi.c.421) FastCGI-stderr: )

[pralor-bot]

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

https://discourse.pi-hole.net/t/feedback-for-allow-defining-clients-by-their-mac-address-host-name-and-networking-interface/32324/103

[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-5-1-released/35577/1