[linux installer script] Deprecate Fluentd support (#6264) #13304

Job	Run time
setup-environment	1m 27s
gofmt	7m 28s
generate-metrics	5m 44s
cross-compile (binaries-darwin_amd64)	5m 36s
lint	12m 15s
cross-compile (binaries-darwin_arm64)	5m 19s
coverage	12m 28s
test	16m 56s
cross-compile (binaries-linux_amd64)	5m 25s
cross-compile (binaries-linux_arm64)	5m 16s
tidy	2m 11s
cross-compile (binaries-windows_amd64)	5m 28s
cross-compile (binaries-linux_ppc64le)	5m 18s
	1h 30m 51s

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