TUN-2243: Revert "STOR-519: Add db-connect, a SQL over HTTPS server"

This reverts commit 5da2109811.

vendor/github.com/kshvakov/clickhouse/lib/cityhash102/city64.go

@@ -1,45 +0,0 @@
-package cityhash102
-
-import (
-	"encoding/binary"
-	"hash"
-)
-
-type City64 struct {
-	s []byte
-}
-
-var _ hash.Hash64 = (*City64)(nil)
-var _ hash.Hash = (*City64)(nil)
-
-func New64() hash.Hash64 {
-	return &City64{}
-}
-
-func (this *City64) Sum(b []byte) []byte {
-	b2 := make([]byte, 8)
-	binary.BigEndian.PutUint64(b2, this.Sum64())
-	b = append(b, b2...)
-	return b
-}
-
-func (this *City64) Sum64() uint64 {
-	return CityHash64(this.s, uint32(len(this.s)))
-}
-
-func (this *City64) Reset() {
-	this.s = this.s[0:0]
-}
-
-func (this *City64) BlockSize() int {
-	return 1
-}
-
-func (this *City64) Write(s []byte) (n int, err error) {
-	this.s = append(this.s, s...)
-	return len(s), nil
-}
-
-func (this *City64) Size() int {
-	return 8
-}