Remove commented out for loop hack and add commenting on new lock #1796

Job	Run time
Lint	46s
ARM [GOAL install] [buster]	2m 12s
macOS 12 native [GOAL install] [GUI] [no depends]	12m 31s
Win32	2m 54s
Win64	4m 27s
i386 Linux [GOAL install] [focal]	1m 47s
x86_64 Linux [GOAL install] [GUI] [focal] [no depends]	12m 45s
x86_64 Linux [GOAL install] [GUI] [bionic] [no depends]	11m 7s
macOS 10.14 [GOAL deploy] [GUI] [no tests] [focal]	9m 20s
	57m 49s

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