Updating golang dependancies (#4075)

vendor/github.com/go-sql-driver/mysql/statement.go

@@ -10,9 +10,6 @@ package mysql
 
 import (
 	"database/sql/driver"
-	"fmt"
-	"reflect"
-	"strconv"
 )
 
 type mysqlStmt struct {
@@ -37,10 +34,6 @@ func (stmt *mysqlStmt) NumInput() int {
 	return stmt.paramCount
 }
 
-func (stmt *mysqlStmt) ColumnConverter(idx int) driver.ValueConverter {
-	return converter{}
-}
-
 func (stmt *mysqlStmt) Exec(args []driver.Value) (driver.Result, error) {
 	if stmt.mc.netConn == nil {
 		errLog.Print(ErrInvalidConn)
@@ -101,9 +94,9 @@ func (stmt *mysqlStmt) Query(args []driver.Value) (driver.Rows, error) {
 	}
 
 	rows := new(binaryRows)
+	rows.mc = mc
 
 	if resLen > 0 {
-		rows.mc = mc
 		// Columns
 		// If not cached, read them and cache them
 		if stmt.columns == nil {
@@ -117,34 +110,3 @@ func (stmt *mysqlStmt) Query(args []driver.Value) (driver.Rows, error) {
 
 	return rows, err
 }
-
-type converter struct{}
-
-func (c converter) ConvertValue(v interface{}) (driver.Value, error) {
-	if driver.IsValue(v) {
-		return v, nil
-	}
-
-	rv := reflect.ValueOf(v)
-	switch rv.Kind() {
-	case reflect.Ptr:
-		// indirect pointers
-		if rv.IsNil() {
-			return nil, nil
-		}
-		return c.ConvertValue(rv.Elem().Interface())
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return rv.Int(), nil
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32:
-		return int64(rv.Uint()), nil
-	case reflect.Uint64:
-		u64 := rv.Uint()
-		if u64 >= 1<<63 {
-			return strconv.FormatUint(u64, 10), nil
-		}
-		return int64(u64), nil
-	case reflect.Float32, reflect.Float64:
-		return rv.Float(), nil
-	}
-	return nil, fmt.Errorf("unsupported type %T, a %s", v, rv.Kind())
-}