[gthumb] removed unused variables

[Paolo Bacchilega <paobac src gnome org>]

commit 9efe07230d24b2231acb6e08d3e36602a7e74465
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat Jan 5 16:02:10 2019 +0100

    removed unused variables

 extensions/exiv2_tools/exiv2-utils.cpp | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/extensions/exiv2_tools/exiv2-utils.cpp b/extensions/exiv2_tools/exiv2-utils.cpp
index a1a16ec2..4513771c 100644
--- a/extensions/exiv2_tools/exiv2-utils.cpp
+++ b/extensions/exiv2_tools/exiv2-utils.cpp
@@ -455,8 +455,6 @@ set_attribute_from_metadata (GFileInfo  *info,
        char *formatted_value;
        char *raw_value;
        char *type_name;
-       char *formatted_value_utf8;
-       char *raw_value_utf8;
 
        if (metadata == NULL)
                return;