[gimp] app/text: Fix const warning

[Niels De Graef <nielsdg src gnome org>]

commit 484e9afb222f9e993b7e138f4ad14413ff814052
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Fri May 15 00:23:42 2020 +0200

    app/text: Fix const warning
    
    You shouldn't rely on GObjects being `const`, since a reference count
    operation does not respect that. That being said, this fixes a warning,
    for a keyword that seems to be redundant here.

 app/text/gimptext-parasite.c | 2 +-
 app/text/gimptext-parasite.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/app/text/gimptext-parasite.c b/app/text/gimptext-parasite.c
index 0b8c617451..b07e66a53c 100644
--- a/app/text/gimptext-parasite.c
+++ b/app/text/gimptext-parasite.c
@@ -53,7 +53,7 @@ gimp_text_parasite_name (void)
 }
 
 GimpParasite *
-gimp_text_to_parasite (const GimpText *text)
+gimp_text_to_parasite (GimpText *text)
 {
   g_return_val_if_fail (GIMP_IS_TEXT (text), NULL);
 
diff --git a/app/text/gimptext-parasite.h b/app/text/gimptext-parasite.h
index d834309e47..2e2847a497 100644
--- a/app/text/gimptext-parasite.h
+++ b/app/text/gimptext-parasite.h
@@ -23,7 +23,7 @@
 
 
 const gchar  * gimp_text_parasite_name          (void) G_GNUC_CONST;
-GimpParasite * gimp_text_to_parasite            (const GimpText      *text);
+GimpParasite * gimp_text_to_parasite            (GimpText      *text);
 GimpText     * gimp_text_from_parasite          (const GimpParasite  *parasite,
                                                  GError             **error);