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

This reverts commit 5da2109811.

vendor/github.com/kshvakov/clickhouse/write_column.go

@@ -1,54 +0,0 @@
-package clickhouse
-
-import (
-	"database/sql"
-	"database/sql/driver"
-	"time"
-
-	"github.com/kshvakov/clickhouse/lib/data"
-)
-
-// Interface for Clickhouse driver
-type Clickhouse interface {
-	Block() (*data.Block, error)
-	Prepare(query string) (driver.Stmt, error)
-	Begin() (driver.Tx, error)
-	Commit() error
-	Rollback() error
-	Close() error
-	WriteBlock(block *data.Block) error
-}
-
-// Interface for Block allowing writes to individual columns
-type ColumnWriter interface {
-	WriteDate(c int, v time.Time) error
-	WriteDateTime(c int, v time.Time) error
-	WriteUInt8(c int, v uint8) error
-	WriteUInt16(c int, v uint16) error
-	WriteUInt32(c int, v uint32) error
-	WriteUInt64(c int, v uint64) error
-	WriteFloat32(c int, v float32) error
-	WriteFloat64(c int, v float64) error
-	WriteBytes(c int, v []byte) error
-	WriteArray(c int, v interface{}) error
-	WriteString(c int, v string) error
-	WriteFixedString(c int, v []byte) error
-}
-
-func OpenDirect(dsn string) (Clickhouse, error) {
-	return open(dsn)
-}
-
-func (ch *clickhouse) Block() (*data.Block, error) {
-	if ch.block == nil {
-		return nil, sql.ErrTxDone
-	}
-	return ch.block, nil
-}
-
-func (ch *clickhouse) WriteBlock(block *data.Block) error {
-	if block == nil {
-		return sql.ErrTxDone
-	}
-	return ch.writeBlock(block)
-}