Set exchange delegate for app message send

[pan-apple]

Problem

The command's response from the device is not being sent.

Summary of Changes

#5938 introduced concept of exchange message dispatch. During rework of the code, the default dispatch object was removed. The app-sender need to set the delegate explicitly to be able to send the message thru default dispatch.

Also, removed a log that got added as part of debugging.

[todo]

This is a placeholder delegate for exchange context created in Device::SendMessage()

connectedhomeip/src/app/util/chip-message-send.cpp

Lines 42 to 52 in 8adbc6b

	// TODO: This is a placeholder delegate for exchange context created in Device::SendMessage()
	// Delete this class when Device::SendMessage() is obsoleted.
	class DeviceExchangeDelegate : public Messaging::ExchangeDelegate
	{
	void OnMessageReceived(Messaging::ExchangeContext * ec, const PacketHeader & packetHeader, const PayloadHeader & payloadHeader,
	System::PacketBufferHandle payload) override
	{}
	void OnResponseTimeout(Messaging::ExchangeContext * ec) override {}
	};
	extern SecureSessionMgr & SessionManager();

---

This comment was generated by todo based on a TODO comment in 8adbc6b in #6027. cc @pan-apple.

[woody-apple]

This is breaking the build, tagging.

[github-actions]

Size increase report for "nrfconnect-example-build" from 362c5f2

File	Section	File	VM
chip-lighting.elf	text	20	20
chip-lighting.elf	device_handles	12	12
chip-lighting.elf	rodata	-8	-8
chip-lock.elf	text	20	20
chip-lock.elf	device_handles	12	12
chip-lock.elf	rodata	-8	-12
chip-shell.elf	device_handles	8	8
chip-shell.elf	text	-24	-24
chip-shell.elf	rodata	-40	-40

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-lighting.elf and ./pull_artifact/chip-lighting.elf:

sections,vmsize,filesize
.debug_info,0,2631
.debug_str,0,532
.debug_loc,0,516
.debug_line,0,402
.strtab,0,389
.debug_abbrev,0,271
.debug_ranges,0,224
.symtab,0,144
.debug_frame,0,104
.debug_aranges,0,48
text,20,20
device_handles,12,12
.shstrtab,0,-1
rodata,-8,-8

Comparing ./master_artifact/chip-lock.elf and ./pull_artifact/chip-lock.elf:

sections,vmsize,filesize
.debug_info,0,2631
.debug_str,0,532
.debug_loc,0,516
.debug_line,0,402
.strtab,0,389
.debug_abbrev,0,271
.debug_ranges,0,224
.symtab,0,144
.debug_frame,0,104
.debug_aranges,0,48
text,20,20
device_handles,12,12
.shstrtab,0,-1
rodata,-12,-8

Comparing ./master_artifact/chip-shell.elf and ./pull_artifact/chip-shell.elf:

sections,vmsize,filesize
device_handles,8,8
.debug_line,0,-2
text,-24,-24
.symtab,0,-32
rodata,-40,-40
.debug_info,0,-54

[github-actions]

Size increase report for "esp32-example-build" from 362c5f2

File	Section	File	VM
chip-all-clusters-app.elf	.flash.text	40	40
chip-all-clusters-app.elf	.flash.rodata	-8	-8

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-pigweed-app.elf and ./pull_artifact/chip-pigweed-app.elf:

sections,vmsize,filesize

Comparing ./master_artifact/chip-all-clusters-app.elf and ./pull_artifact/chip-all-clusters-app.elf:

sections,vmsize,filesize
.debug_info,0,2612
.debug_line,0,683
.debug_str,0,532
.shstrtab,0,487
.debug_loc,0,459
.strtab,0,389
.debug_abbrev,0,257
.symtab,0,208
.xt.prop._ZN4chip22DeviceExchangeDelegate17OnMessageReceivedEPNS_9Messaging15ExchangeContextERKNS_12PacketHeaderERKNS_13PayloadHeaderENS_6System18PacketBufferHandleE,0,156
.debug_frame,0,144
.debug_ranges,0,120
.xt.prop._ZN4chip22DeviceExchangeDelegate17OnResponseTimeoutEPNS_9Messaging15ExchangeContextE,0,76
.xt.prop._ZN4chip22DeviceExchangeDelegateD0Ev,0,76
.xt.prop._ZN4chip22DeviceExchangeDelegateD2Ev,0,76
.xt.prop._ZTVN4chip22DeviceExchangeDelegateE,0,52
.debug_aranges,0,48
.flash.text,40,40
[Unmapped],0,8
.xt.prop._ZTVN4chip9Transport3BLEE,0,1
.flash.rodata,-8,-8