Remove pre-sort on label hashing

Signed-off-by: Pablo RUTH <[email protected]>

pkg/receive/hashring.go

@@ -6,7 +6,6 @@ package receive
 import (
 	"context"
 	"fmt"
-	"sort"
 	"sync"
 
 	"github.com/pkg/errors"
@@ -67,8 +66,6 @@ func (s simpleHashring) GetN(tenant string, ts *prompb.TimeSeries, n uint64) (st
 		return "", &insufficientNodesError{have: uint64(len(s)), want: n + 1}
 	}
 
-	sort.Slice(ts.Labels, func(i, j int) bool { return ts.Labels[i].Name < ts.Labels[j].Name })
-
 	return s[(labelpb.HashWithPrefix(tenant, ts.Labels)+n)%uint64(len(s))], nil
 }