docs(cli): remove docs for non-existing `argocd app set` flags (#18671) #30124

Job	Run time
changes	14s
changes	14s
Lint Go code	4m 9s
Lint Go code	4m 9s
Ensure Go modules synchronicity	19s
Ensure Go modules synchronicity	19s
Build & cache Go code	2m 49s
Build & cache Go code	2m 49s
Build, test & lint UI code	1m 39s
Build, test & lint UI code	1m 39s
Check changes to generated code	5m 42s
Check changes to generated code	5m 42s
Run unit tests for Go packages	4m 35s
Run unit tests for Go packages	4m 35s
Run unit tests with -race for Go packages	7m 52s
Run unit tests with -race for Go packages	7m 52s
Run end-to-end tests (v1.29.1, true)	46m 2s
Run end-to-end tests (v1.29.1, true)	46m 2s
Run end-to-end tests (v1.28.6, false)	47m 0s
Run end-to-end tests (v1.28.6, false)	47m 0s
Run end-to-end tests (v1.27.10, false)	45m 20s
Run end-to-end tests (v1.27.10, false)	45m 20s
Run end-to-end tests (v1.26.13, false)	48m 24s
Run end-to-end tests (v1.26.13, false)	48m 24s
Run end-to-end tests (v1.25.16, false)	50m 3s
Run end-to-end tests (v1.25.16, false)	50m 3s
E2E Tests - Composite result	1s
E2E Tests - Composite result	1s
Process & analyze test artifacts	37s
Process & analyze test artifacts	37s
	8h 49m 32s

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