[Size reports] Remove .heap section from reports

[kpschoedel]

Problem

For platforms that use it, the .heap section indicates memory
available for the heap, that is, RAM not otherwise in use.
Including it in size reports is confusing because a .heap increase
is good.

Change overview

Remove .heap from the default section list of the platforms
where it currently appears, namely Mbed and P6.

Testing

Manually checked on a P6 binary.

[github-actions]

PR #13056: Size comparison from 32370de to 1360231

Full report (32 builds for efr32, esp32, k32w, linux, mbed, nrfconnect, p6, qpg, telink)

platform	target	config	section	32370de4	1360231	change	% change
efr32	lighting-app	BRD4161A	(read only)	836360	836360	0	0.0
			(read/write)	127576	127576	0	0.0
			.bss	125696	125696	0	0.0
			.data	1876	1876	0	0.0
			.text	836352	836352	0	0.0
		BRD4161A+rpc	(read only)	823964	823964	0	0.0
			(read/write)	144248	144248	0	0.0
			.bss	142272	142272	0	0.0
			.data	1976	1976	0	0.0
			.text	823956	823956	0	0.0
	window-app	BRD4161A	(read only)	809720	809720	0	0.0
			(read/write)	126512	126512	0	0.0
			.bss	124680	124680	0	0.0
			.data	1832	1832	0	0.0
			.text	809712	809712	0	0.0
esp32	all-clusters-app	c3devkit	(read only)	876682	876682	0	0.0
			(read/write)	1313026	1313026	0	0.0
			.dram0.bss	70016	70016	0	0.0
			.dram0.data	14204	14204	0	0.0
			.flash.rodata	175776	175776	0	0.0
			.flash.text	876682	876682	0	0.0
			.iram0.text	62076	62076	0	0.0
		m5stack	(read only)	962507	962507	0	0.0
			(read/write)	453784	453784	0	0.0
			.dram0.bss	76344	76344	0	0.0
			.dram0.data	34056	34056	0	0.0
			.flash.rodata	211596	211596	0	0.0
			.flash.text	957123	957123	0	0.0
			.iram0.text	123451	123451	0	0.0
k32w	lighting-app	k32w061+se05x+release	(read/write)	687048	687048	0	0.0
			.bss	78280	78280	0	0.0
			.data	1908	1908	0	0.0
			.text	601060	601060	0	0.0
	lock-app	k32w061+debug	(read/write)	634612	634612	0	0.0
			.bss	76432	76432	0	0.0
			.data	1860	1860	0	0.0
			.text	550520	550520	0	0.0
	shell	k32w061+debug	(read/write)	640016	640016	0	0.0
			.bss	78740	78740	0	0.0
			.data	1840	1840	0	0.0
			.text	553636	553636	0	0.0
linux	chip-tool-ipv6only	arm64	(read only)	6911396	6911396	0	0.0
			(read/write)	323201	323201	0	0.0
			.bss	54833	54833	0	0.0
			.data	1096	1096	0	0.0
			.data.rel.ro	207704	207704	0	0.0
			.dynamic	560	560	0	0.0
			.got	55864	55864	0	0.0
			.init	24	24	0	0.0
			.init_array	168	168	0	0.0
			.rodata	377636	377636	0	0.0
			.text	5847812	5847812	0	0.0
	thermostat-no-ble	arm64	(read only)	1994756	1994756	0	0.0
			(read/write)	144113	144113	0	0.0
			.bss	64577	64577	0	0.0
			.data	832	832	0	0.0
			.data.rel.ro	71976	71976	0	0.0
			.dynamic	560	560	0	0.0
			.got	3840	3840	0	0.0
			.init	24	24	0	0.0
			.init_array	288	288	0	0.0
			.rodata	127924	127924	0	0.0
			.text	1655456	1655456	0	0.0
mbed	all-clusters-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2334344	2334344	0	0.0
			.bss	189268	189268	0	0.0
			.data	5256	5256	0	0.0
			.text	1296920	1296920	0	0.0
	lighting-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2329840	2329840	0	0.0
			.bss	181128	181128	0	0.0
			.data	5544	5544	0	0.0
			.text	1292440	1292440	0	0.0
	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2302936	2302936	0	0.0
			.bss	180168	180168	0	0.0
			.data	5536	5536	0	0.0
			.text	1265536	1265536	0	0.0
	pigweed-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	1140008	1140008	0	0.0
			.bss	11756	11756	0	0.0
			.data	4368	4368	0	0.0
			.text	103392	103392	0	0.0
	shell	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2054328	2054328	0	0.0
			.bss	156980	156980	0	0.0
			.data	4864	4864	0	0.0
			.text	1016928	1016928	0	0.0
nrfconnect	lighting-app	nrf52840dk_nrf52840	(read/write)	922923	922923	0	0.0
			bss	118788	118788	0	0.0
			rodata	104292	104292	0	0.0
			text	624212	624212	0	0.0
		nrf52840dk_nrf52840+rpc	(read/write)	885963	885963	0	0.0
			bss	115140	115140	0	0.0
			rodata	95588	95588	0	0.0
			text	598952	598952	0	0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	848934	848934	0	0.0
			bss	120164	120164	0	0.0
			rodata	99552	99552	0	0.0
			text	554652	554652	0	0.0
	lock-app	nrf52840dk_nrf52840	(read/write)	894963	894963	0	0.0
			bss	117968	117968	0	0.0
			rodata	99604	99604	0	0.0
			text	601980	601980	0	0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	821234	821234	0	0.0
			bss	119376	119376	0	0.0
			rodata	94892	94892	0	0.0
			text	532512	532512	0	0.0
	pigweed-app	nrf52840dk_nrf52840	(read/write)	497447	497447	0	0.0
			bss	51820	51820	0	0.0
			rodata	45852	45852	0	0.0
			text	339488	339488	0	0.0
	pump-app	nrf52840dk_nrf52840	(read/write)	899915	899915	0	0.0
			bss	117880	117880	0	0.0
			rodata	100956	100956	0	0.0
			text	605584	605584	0	0.0
	pump-controller-app	nrf52840dk_nrf52840	(read/write)	893123	893123	0	0.0
			bss	117760	117760	0	0.0
			rodata	99092	99092	0	0.0
			text	600780	600780	0	0.0
	shell	nrf52840dk_nrf52840	(read/write)	782767	782767	0	0.0
			bss	109624	109624	0	0.0
			rodata	74396	74396	0	0.0
			text	524232	524232	0	0.0
		nrf5340dk_nrf5340_cpuapp	(read/write)	697838	697838	0	0.0
			bss	110604	110604	0	0.0
			rodata	69040	69040	0	0.0
			text	444868	444868	0	0.0
p6	all-clusters-app	default	(read/write)	2390368	2390368	0	0.0
			.bss	117468	117468	0	0.0
			.data	2536	2536	0	0.0
			.text	1348632	1348632	0	0.0
	light-app	default	(read/write)	2330680	2330680	0	0.0
			.bss	106384	106384	0	0.0
			.data	2384	2384	0	0.0
			.text	1288944	1288944	0	0.0
	lock-app	default	(read/write)	2302896	2302896	0	0.0
			.bss	105264	105264	0	0.0
			.data	2336	2336	0	0.0
			.text	1261160	1261160	0	0.0
qpg	lighting-app	qpg6105+debug	(read only)	533100	533100	0	0.0
			(read/write)	146936	146936	0	0.0
			.bss	87032	87032	0	0.0
			.data	1004	1004	0	0.0
			.text	527780	527780	0	0.0
	lock-app	qpg6105+debug	(read only)	504788	504788	0	0.0
			(read/write)	146940	146940	0	0.0
			.bss	86168	86168	0	0.0
			.data	952	952	0	0.0
			.text	499468	499468	0	0.0
	persistent-storage-app	qpg6105+debug	(read only)	106448	106448	0	0.0
			(read/write)	146938	146938	0	0.0
			.bss	36146	36146	0	0.0
			.data	288	288	0	0.0
			.text	101128	101128	0	0.0
telink	lighting-app	tlsr9518adk80d	(read/write)	831922	831922	0	0.0
			bss	87272	87272	0	0.0
			noinit	37160	37160	0	0.0
			text	579974	579974	0	0.0

[bzbarsky-apple]

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