refactor!: remove opentsdb tcp server #15567

Job	Run time
Check (windows-latest)	6m 55s
Check typos and docs	24s
Check (ubuntu-20.04)	1m 58s
Build GreptimeDB binaries (ubuntu-20.04)	4m 7s
Clippy	2m 27s
Rustfmt	24s
Toml Check	27s
coverage	0s
Sqlness Test with Kafka Wal (ubuntu-20.04)	3m 0s
Fuzz Test (fuzz_create_table)	4m 55s
Fuzz Test (fuzz_alter_table)	4m 31s
Sqlness Test (ubuntu-20.04)	2m 19s
Fuzz Test (fuzz_create_database)	5m 18s
Fuzz Test (fuzz_create_logical_table)	4m 34s
Fuzz Test (fuzz_alter_logical_table)	4m 47s
	46m 6s

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