[gimp/gimp-2-10] plug-ins: another fix to last commit

[Ell <ell src gnome org>]

commit f358bd5cd23f4577dcb64a1f92726b429207f298
Author: Ell <ell_se yahoo com>
Date:   Thu Jun 4 21:00:39 2020 +0300

    plug-ins: another fix to last commit
    
    (cherry picked from commit 6d4712edb9f79a9ebcc9b58e3b0014669d0f083e)

 plug-ins/twain/twain.c | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/plug-ins/twain/twain.c b/plug-ins/twain/twain.c
index 707d3649b3..5389e1f0f0 100644
--- a/plug-ins/twain/twain.c
+++ b/plug-ins/twain/twain.c
@@ -757,9 +757,6 @@ oneBytePerSampleTransferCallback (pTW_IMAGEINFO     imageInfo,
                    theClientData->format, imageMemXfer->Memory.TheMem,
                    imageMemXfer->BytesPerRow);
 
-  /* Free the buffer */
-  gegl_scratch_free (destBuf);
-
   /* Update the user on our progress */
   theClientData->completedPixels += (cols * rows);
   gimp_progress_update ((double) theClientData->completedPixels /