Remove unhelpful ParseArgs help text validation

[tcarmelveilleux]

Problem

• Help text validation when
  CHIP_CONFIG_ENABLE_ARG_PARSER_VALIDITY_CHECKS are enabled
  are both unhelpful and unsafe. Unhelpful because
  such failures are unlikely to get better code delivered,
  and unsafe because the algorithms used make use of
  sketchy tricky code with negative indexing that was shown
  to sometimes fail on ARM builds.

Fixes #17323

Change overview

This PR removes the help content checks

Testing

• Unit tests still pass
• chip-all-clusters-app linux still builds, and runs cert tests properly

[github-actions]

PR #17394: Size comparison from 01e54b2 to 0a610a5

Decreases (1 build for linux)

platform	target	config	section	01e54b2	0a610a5	change	% change
linux	thermostat-no-ble	arm64	(read only)	2353652	2352612	-1040	-0.0
			(read/write)	151137	151121	-16	-0.0
			.rodata	144612	144500	-112	-0.1
			.text	1980384	1979600	-784	-0.0

Full report (23 builds for cc13x2_26x2, cyw30739, efr32, esp32, k32w, linux, mbed, nrfconnect, p6, telink)

platform	target	config	section	01e54b2	0a610a5	change	% change
cc13x2_26x2	all-clusters-app	LP_CC2652R7	(read only)	683351	683351	0	0.0
			(read/write)	169840	169840	0	0.0
			.bss	76176	76176	0	0.0
			.data	3380	3380	0	0.0
			.rodata	102975	102975	0	0.0
			.text	579896	579896	0	0.0
	lock-ftd	LP_CC2652R7	(read only)	639823	639823	0	0.0
			(read/write)	151220	151220	0	0.0
			.bss	74152	74152	0	0.0
			.data	3212	3212	0	0.0
			.rodata	79951	79951	0	0.0
			.text	559380	559380	0	0.0
	lock-mtd	LP_CC2652R7	(read only)	588567	588567	0	0.0
			(read/write)	146940	146940	0	0.0
			.bss	69872	69872	0	0.0
			.data	3212	3212	0	0.0
			.rodata	79831	79831	0	0.0
			.text	508244	508244	0	0.0
	pump-app	LP_CC2652R7	(read only)	648571	648571	0	0.0
			(read/write)	152516	152516	0	0.0
			.bss	74648	74648	0	0.0
			.data	3244	3244	0	0.0
			.rodata	75435	75435	0	0.0
			.text	572648	572648	0	0.0
	pump-controller-app	LP_CC2652R7	(read only)	641871	641871	0	0.0
			(read/write)	152184	152184	0	0.0
			.bss	74352	74352	0	0.0
			.data	3208	3208	0	0.0
			.rodata	78767	78767	0	0.0
			.text	562616	562616	0	0.0
cyw30739	light	cyw930739m2evb_01	(read/write)	618458	618458	0	0.0
			.app_xip_area	525160	525160	0	0.0
			.bss	75964	75964	0	0.0
			.data	684	684	0	0.0
			.rodata	0	0	0	0.0
			.text	0	0	0	0.0
	lock	cyw930739m2evb_01	(read/write)	576058	576058	0	0.0
			.app_xip_area	484296	484296	0	0.0
			.bss	74460	74460	0	0.0
			.data	648	648	0	0.0
			.rodata	0	0	0	0.0
			.text	0	0	0	0.0
	ota-requestor-no-progress-logging	cyw930739m2evb_01	(read/write)	565234	565234	0	0.0
			.app_xip_area	463844	463844	0	0.0
			.bss	83792	83792	0	0.0
			.data	564	564	0	0.0
			.rodata	0	0	0	0.0
			.text	112	112	0	0.0
efr32	lighting-app	BRD4161A	(read only)	907396	907396	0	0.0
			(read/write)	133152	133152	0	0.0
			.bss	131112	131112	0	0.0
			.data	2040	2040	0	0.0
			.text	907388	907388	0	0.0
		BRD4161A+rpc	(read only)	941772	941772	0	0.0
			(read/write)	149836	149836	0	0.0
			.bss	147592	147592	0	0.0
			.data	2244	2244	0	0.0
			.text	941764	941764	0	0.0
	window-app	BRD4161A	(read only)	844052	844052	0	0.0
			(read/write)	131156	131156	0	0.0
			.bss	129208	129208	0	0.0
			.data	1948	1948	0	0.0
			.text	844044	844044	0	0.0
esp32	all-clusters-app	c3devkit	(read only)	979666	979666	0	0.0
			(read/write)	1397410	1397410	0	0.0
			.dram0.bss	62632	62632	0	0.0
			.dram0.data	14420	14420	0	0.0
			.flash.rodata	201432	201432	0	0.0
			.flash.text	979666	979666	0	0.0
			.iram0.text	62016	62016	0	0.0
		m5stack	(read only)	1035075	1035075	0	0.0
			(read/write)	465164	465164	0	0.0
			.dram0.bss	68152	68152	0	0.0
			.dram0.data	34152	34152	0	0.0
			.flash.rodata	231024	231024	0	0.0
			.flash.text	1029691	1029691	0	0.0
			.iram0.text	123107	123107	0	0.0
k32w	light	k32w061+release	(read/write)	683976	683976	0	0.0
			.bss	77952	77952	0	0.0
			.data	1992	1992	0	0.0
			.text	598232	598232	0	0.0
	lock	k32w061+release	(read/write)	688204	688204	0	0.0
			.bss	78528	78528	0	0.0
			.data	1952	1952	0	0.0
			.text	601924	601924	0	0.0
linux	chip-tool-no-interactive-ipv6only	arm64	(read only)	10343140	10343140	0	0.0
			(read/write)	492273	492273	0	0.0
			.bss	41025	41025	0	0.0
			.data	1168	1168	0	0.0
			.data.rel.ro	388840	388840	0	0.0
			.dynamic	560	560	0	0.0
			.got	57440	57440	0	0.0
			.init	24	24	0	0.0
			.init_array	184	184	0	0.0
			.rodata	513204	513204	0	0.0
			.text	8726516	8726516	0	0.0
	thermostat-no-ble	arm64	(read only)	2353652	2352612	-1040	-0.0
			(read/write)	151137	151121	-16	-0.0
			.bss	63169	63169	0	0.0
			.data	1424	1424	0	0.0
			.data.rel.ro	78752	78752	0	0.0
			.dynamic	560	560	0	0.0
			.got	4768	4768	0	0.0
			.init	24	24	0	0.0
			.init_array	368	368	0	0.0
			.rodata	144612	144500	-112	-0.1
			.text	1980384	1979600	-784	-0.0
mbed	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2368820	2368820	0	0.0
			.bss	185244	185244	0	0.0
			.data	5840	5840	0	0.0
			.text	1331420	1331420	0	0.0
nrfconnect	all-clusters-app	nrf52840dk_nrf52840	(read/write)	1162867	1162867	0	0.0
			bss	136536	136536	0	0.0
			rodata	147092	147092	0	0.0
			text	800624	800624	0	0.0
p6	all-clusters-app	default	(read/write)	2514624	2514624	0	0.0
			.bss	118648	118648	0	0.0
			.data	2768	2768	0	0.0
			.text	1472888	1472888	0	0.0
	light-app	default	(read/write)	2415080	2415080	0	0.0
			.bss	112144	112144	0	0.0
			.data	2576	2576	0	0.0
			.text	1373344	1373344	0	0.0
	lock-app	default	(read/write)	2378648	2378648	0	0.0
			.bss	111888	111888	0	0.0
			.data	2536	2536	0	0.0
			.text	1336912	1336912	0	0.0
telink	lighting-app	tlsr9518adk80d	(read/write)	800852	800852	0	0.0
			bss	69996	69996	0	0.0
			noinit	40416	40416	0	0.0
			text	569742	569742	0	0.0