[chore][service/internal/proctelemetry] Remove flaky goleak test (#9231) #1

Job	Run time
govulncheck	1m 0s
setup-environment	28s
unittest-matrix (~1.21.5)	4m 51s
unittest-matrix (~1.20.12)	4m 0s
lint	3m 7s
checks	2m 1s
cross-build-collector (darwin, amd64)	46s
test-coverage	6m 55s
cross-build-collector (darwin, arm64)	41s
cross-build-collector (linux, 386)	40s
cross-build-collector (linux, amd64)	46s
cross-build-collector (linux, arm64)	41s
cross-build-collector (linux, ppc64le)	41s
cross-build-collector (linux, arm, 7)	44s
cross-build-collector (linux, s390x)	43s
cross-build-collector (windows, 386)	35s
cross-build-collector (windows, amd64)	38s
unittest	1s
	29m 18s

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