remove unused split lines

Author: James Cor

sql/plan/load_data.go

@@ -15,9 +15,7 @@
 package plan
 
 import (
-	"strings"
-
-	"github.com/dolthub/vitess/go/vt/sqlparser"
+		"github.com/dolthub/vitess/go/vt/sqlparser"
 
 	"github.com/dolthub/go-mysql-server/sql"
 )
@@ -69,25 +67,6 @@ func (l *LoadData) IsReadOnly() bool {
 	return false
 }
 
-func (l *LoadData) SplitLines(data []byte, atEOF bool) (advance int, token []byte, err error) {
-	// Return Nothing if at end of file and no data passed.
-	if atEOF && len(data) == 0 {
-		return 0, nil, nil
-	}
-
-	// Find the index of the LINES TERMINATED BY delim.
-	if i := strings.Index(string(data), l.LinesTerminatedBy); i >= 0 {
-		return i + len(l.LinesTerminatedBy), data[0:i], nil
-	}
-
-	// If at end of file with data return the data.
-	if atEOF {
-		return len(data), data, nil
-	}
-
-	return
-}
-
 func (l *LoadData) WithChildren(children ...sql.Node) (sql.Node, error) {
 	if len(children) != 0 {
 		return nil, sql.ErrInvalidChildrenNumber.New(l, len(children), 0)