[MIRROR] Removes unused code for HTML UIs #6381

Job	Run time
Run Linters	3m 14s
Collect data for other tasks	16s
Lint with OpenDream	34s
Windows Build	1m 53s
Compile Maps	1m 30s
Integration Tests (blueshift) / run_integration_tests	2m 4s
Integration Tests (birdshot) / run_integration_tests	1m 56s
Integration Tests (deltastation) / run_integration_tests	2m 1s
Integration Tests (gateway_test) / run_integration_tests	2m 16s
Integration Tests (icebox) / run_integration_tests	2m 7s
Integration Tests (kilostation2) / run_integration_tests	1m 56s
Integration Tests (metastation) / run_integration_tests	1m 55s
Integration Tests (multiz_debug) / run_integration_tests	2m 3s
Integration Tests (northstar) / run_integration_tests	1m 57s
Integration Tests (nssjourney) / run_integration_tests	2m 5s
Integration Tests (ouroboros) / run_integration_tests	2m 11s
Integration Tests (runtimestation) / run_integration_tests	2m 1s
Integration Tests (tramstation) / run_integration_tests	2m 3s
Integration Tests (voidraptor) / run_integration_tests	1m 54s
Alternate Tests (515, 1627, runtimestation) / run_integration_tests	1m 59s
Compare Screenshot Tests	21s
Check Alternate Tests	0s
	38m 16s

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