Remove redundant duplicate message logging.

[bzbarsky-apple]

We already log the duplicate at the point when we actually drop it.

Problem

Logs that look like this:

[1632511832.268209][33148:33148] CHIP:IN: Received a duplicate message with MessageCounter: 1366413728
[1632511832.268237][33148:33148] CHIP:IN: Received a duplicate message with MessageCounter:1366413728 on exchange 16911r

Change overview

Just keep the second of those messages.

Testing

No behavior changes.

[bzbarsky-apple]

/rebase

[github-actions]

Size increase report for "esp32-example-build" from 45715cc

File	Section	File	VM
chip-all-clusters-app.elf	.flash.text	-40	-40
chip-all-clusters-app.elf	.flash.rodata	-56	-56

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

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

sections,vmsize,filesize
[Unmapped],0,96
.flash.text,-40,-40
.flash.rodata,-56,-56
.debug_info,0,-68
.debug_loc,0,-124
.debug_line,0,-156

[github-actions]

Size increase report for "nrfconnect-example-build" from 45715cc

File	Section	File	VM
chip-shell.elf	device_handles	-12	-12
chip-shell.elf	text	-36	-36
chip-shell.elf	rodata	-56	-52
chip-lock.elf	device_handles	-12	-12
chip-lock.elf	text	-36	-36
chip-lock.elf	rodata	-48	-52

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

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

sections,vmsize,filesize
device_handles,-12,-12
text,-36,-36
.debug_ranges,0,-48
rodata,-52,-56
.debug_line,0,-137
.debug_loc,0,-164
.debug_info,0,-171

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

sections,vmsize,filesize
device_handles,-12,-12
text,-36,-36
.debug_ranges,0,-48
rodata,-52,-48
.debug_loc,0,-124
.debug_line,0,-137
.debug_info,0,-171