Remove tunneling support from CHIP code base

[yufengwangca]

Problem
Tunneling is a feature inherited from Weave and this feature will not be used in CHIP.

Proposed Solution
Cleanup all tunneling support from CHIP code base.

fixes #2080

[woody-apple]

@yufengwangca sadly there's a conflict here now :(

[github-actions]

Size increase report for "nrf-example-build"

File	Section	File	VM
chip-nrf52840-lock-example.out	.text	-4	-4

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-nrf52840-lock-example.out and ./pull_artifact/chip-nrf52840-lock-example.out:

sections,vmsize,filesize
.debug_abbrev,0,77
[Unmapped],0,9
.text,-4,-4
.debug_ranges,0,-32
.debug_macro,0,-600
.debug_line,0,-851
.debug_str,0,-4449
.debug_info,0,-4770

[github-actions]

Size increase report for "nrfconnect-example-build"

File	Section	File	VM
chip-nrf52840-lock-example.elf	[LOAD #1 [RWX]]	-4	-4
chip-nrf52840-lock-example.elf	text	-92	-92

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-nrf52840-lock-example.elf and ./pull_artifact/chip-nrf52840-lock-example.elf:

sections,vmsize,filesize
.debug_abbrev,0,49
[Unmapped],0,-2
[LOAD #1 [RWX]],-4,-4
.debug_aranges,0,-24
.debug_ranges,0,-24
text,-92,-92
.symtab,0,-96
.debug_frame,0,-116
.debug_line,0,-272
.strtab,0,-329
.debug_str,0,-1875
.debug_info,0,-3167

[github-actions]

Size increase report for "linux-example-build"

File	Section	File	VM
chip-standalone-demo.out	.text	-16	-16

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-standalone-demo.out and ./pull_artifact/chip-standalone-demo.out:

sections,vmsize,filesize
.debug_abbrev,0,56
.debug_loc,0,47
[Unmapped],0,17
.text,-16,-16
.debug_ranges,0,-64
.debug_macro,0,-525
.debug_line,0,-541
.debug_info,0,-2848
.debug_str,0,-4454

[github-actions]

Size increase report for "esp32-example-build"

File	Section	File	VM
chip-wifi-echo.elf	.flash.rodata	-136	-136
chip-wifi-echo.elf	.flash.text	-316	-316

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-wifi-echo.elf and ./pull_artifact/chip-wifi-echo.elf:

sections,vmsize,filesize
[Unmapped],0,138
.debug_abbrev,0,18
.symtab,0,-16
.debug_aranges,0,-72
.debug_ranges,0,-72
.strtab,0,-74
.flash.rodata,-136,-136
.debug_frame,0,-216
.flash.text,-316,-316
.debug_line,0,-890
.debug_str,0,-1644
.debug_info,0,-5824

[github-actions]

Size increase report for "gn_nrf-example-build"

File	Section	File	VM

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

[github-actions]

Size increase report for "gn_linux-example-build"

File	Section	File	VM

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

[yufengwangca]

@yufengwangca sadly there's a conflict here now :(

Resolved.