[exporter/carbon] Remove unmaintained component (#1279) #199

Job	Run time
Release k8s / prev-tag	6s
Release k8s / prepare (linux, s390x)	5m 24s
Release k8s / prepare (linux, arm64)	5m 40s
Release k8s / prepare (linux, ppc64le)	5m 55s
Release k8s / prepare (linux, riscv64)	5m 56s
Release k8s / prepare (linux, amd64)	5m 40s
Release k8s (Windows)	-1s
Release k8s / Release	2m 59s
Release k8s / Create GitHub issue on failed nightly release	0s
	31m 39s

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