refactor(fe): delete unused user_diag_reporter_ code #6298

Job	Run time
macOS x86_64	3m 18s
macOS AArch64	1m 4s
Linux x86_64	3m 14s
Linux ARM	1m 51s
Linux AArch64	1m 51s
Windows x86	7m 2s
Windows x64	6m 14s
Windows ARM	1m 43s
Windows ARM64	1m 37s
Scoop package	22s
MSIX installer	1m 9s
Chocolatey package	28s
test on Windows	9s
test on macOS 12	5s
test on Arch Linux	13s
test on Debian 11 Bullseye	9s
test on Debian 10 Buster	3s
test on Fedora 35	7s
test on Fedora 36	11s
test on Ubuntu 20.04 LTS Focal	6s
npm package	14s
test Chocolatey package	29s
test npm package on Windows with npm	25s
test npm package on Windows with npm (--global)	24s
test npm package on Windows with Yarn	9s
test npm package on macOS 12 with npm	7s
test npm package on macOS 12 with npm (--global)	10s
test npm package on macOS 12 with Yarn	6s
test npm package on Ubuntu with npm	7s
test npm package on Ubuntu with npm (--global)	5s
test npm package on Ubuntu with Yarn	4s
winget manifests	16s
	33m 32s

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