Sub Macro1()
Dim I As Long
Dim Plage As Range
Set Plage = Range("D5:D" & Range("D5").End(xlDown).Row)
For I = Plage.Cells.Count To 1 Step -1
If Plage.Cells(I).Value = "samedi" And Plage.Cells(I).Value = "dimanche" Then
Plage.Cells(I).EntireRow.Delete
End If
Next
End Sub