refactor!: remove opentsdb tcp server #15725

Job	Run time
Check typos and docs	15s
Check (windows-latest)	14m 43s
Build GreptimeDB binaries (ubuntu-20.04)	13m 32s
Check (ubuntu-20.04)	9m 8s
Clippy	9m 4s
coverage	19m 25s
Check License Header	1m 23s
Rustfmt	1m 15s
Toml Check	2m 57s
Sqlness Test (ubuntu-20.04)	2m 21s
Unstable Fuzz Test (unstable_fuzz_create_table_standalone)	10m 7s
Sqlness Test with Kafka Wal (ubuntu-20.04)	3m 10s
Fuzz Test (fuzz_create_table)	4m 40s
Fuzz Test (fuzz_alter_table)	5m 8s
Fuzz Test (fuzz_create_database)	4m 50s
Fuzz Test (fuzz_create_logical_table)	6m 12s
Fuzz Test (fuzz_alter_logical_table)	4m 54s
Fuzz Test (fuzz_insert)	5m 2s
Fuzz Test (fuzz_insert_logical_table)	4m 59s
	2h 3m 5s

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