[TM] Fix speed boost on diagonal movement #7025

Job	Run time
Lint with OpenDream	37s
Compile All Maps	1m 5s
Run Linters	2m 30s
Unit Tests + SQL Validation (STABLE)	2m 21s
Unit Tests + SQL Validation (BETA)	2m 44s
Station Tests (boxstation, STABLE)	1m 54s
Windows RUSTG Validation	3m 24s
Station Tests (boxstation, BETA)	2m 2s
Station Tests (deltastation, STABLE)	2m 2s
Station Tests (deltastation, BETA)	2m 5s
Station Tests (metastation, STABLE)	2m 7s
Station Tests (metastation, BETA)	1m 58s
Station Tests (cerestation, STABLE)	2m 14s
Station Tests (cerestation, BETA)	2m 14s
Station Tests (emeraldstation, STABLE)	2m 2s
Station Tests (emeraldstation, BETA)	1m 55s
	33m 14s

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