[nautilus] Revert "file: use emblems for files that use default icon"

[Ondrej Holy <oholy src gnome org>]

commit ca6d56fef057da940704a598100e804cfd74e00d
Author: António Fernandes <antoniof gnome org>
Date:   Fri Apr 10 22:42:55 2020 +0100

    Revert "file: use emblems for files that use default icon"
    
    This reverts commit 8efe35665368539de0e15f150292996cb0ab9121.
    
    It aggravated a performance bug. Reverting only on stable branches.
    
    https://gitlab.gnome.org/GNOME/nautilus/-/issues/1226

 src/nautilus-file.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)
---
diff --git a/src/nautilus-file.c b/src/nautilus-file.c
index ff902db12..6fcaea89b 100644
--- a/src/nautilus-file.c
+++ b/src/nautilus-file.c
@@ -5330,31 +5330,10 @@ nautilus_file_get_icon (NautilusFile          *file,
         icon = nautilus_icon_info_lookup (gicon, size, scale);
         g_object_unref (gicon);
 
-        /* Files for which the MIME type cannot be determined will result in
-         * the icon being detected as a fallback. This is because the default
-         * theme does not have icons for the names corresponding to these file
-         * types. */
         if (nautilus_icon_info_is_fallback (icon))
         {
             g_object_unref (icon);
-
-            gicon = get_default_file_icon ();
-
-            /* Increase ref count on gicon, even though it is statically
-             * allocated. This is needed because apply_emblems_to_icon
-             * decreases the ref count on the original icon it is given. */
-            g_object_ref (gicon);
-
-            if (flags & NAUTILUS_FILE_ICON_FLAGS_USE_EMBLEMS)
-            {
-                apply_emblems_to_icon (file, &gicon, flags);
-            }
-
-            icon = nautilus_icon_info_lookup (gicon, size, scale);
-
-            /* Decrease ref count on either the static default icon, or on the
-             * newly-created emblemed icon. */
-            g_object_unref (gicon);
+            icon = nautilus_icon_info_lookup (get_default_file_icon (), size, scale);
         }
     }