[tracker-miners/sam/raw-warning-fix] tracker-extract-raw.c: Fix compile warning

[Sam Thursfield <sthursfield src gnome org>]

commit 209b3ec874a775d9f4e5b693b1868a9e81050170
Author: Sam Thursfield <sam afuera me uk>
Date:   Sun Jul 14 12:35:53 2019 +0100

    tracker-extract-raw.c: Fix compile warning
    
    There is some witchcraft in GLib's definition of g_clear_pointer(). The
    function definition is overridden by a macro in `glib/gmem.h`, and the
    macro generates this warning if we cast the 'destroy' parameter to the
    expected type:
    
        [101/264] Compiling C object 'src/tracker-extract/ec38c81@@extract-raw@sha/tracker-extract-raw.c.o'.
        In file included from /usr/include/glib-2.0/glib/glist.h:32,
                         from /usr/include/glib-2.0/glib/ghash.h:33,
                         from /usr/include/glib-2.0/glib.h:50,
                         from /usr/include/glib-2.0/gobject/gbinding.h:28,
                         from /usr/include/glib-2.0/glib-object.h:23,
                         from /usr/include/gexiv2/gexiv2-metadata.h:14,
                         from /usr/include/gexiv2/gexiv2.h:13,
                         from ../src/tracker-extract/tracker-extract-raw.c:24:
        ../src/tracker-extract/tracker-extract-raw.c: In function ‘tracker_extract_get_metadata’:
        ../src/tracker-extract/tracker-extract-raw.c:462:24: warning: function called through a 
non-compatible type
          g_clear_pointer (&ed, (GDestroyNotify) raw_exif_data_free);
                                ^
    
    Removing the cast prevents the warning from appearing.

 src/tracker-extract/tracker-extract-raw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/tracker-extract/tracker-extract-raw.c b/src/tracker-extract/tracker-extract-raw.c
index 294741a5f..f51cb381a 100644
--- a/src/tracker-extract/tracker-extract-raw.c
+++ b/src/tracker-extract/tracker-extract-raw.c
@@ -459,7 +459,7 @@ tracker_extract_get_metadata (TrackerExtractInfo *info)
 out:
        g_clear_object (&metadata);
        g_clear_object (&resource);
-       g_clear_pointer (&ed, (GDestroyNotify) raw_exif_data_free);
+       g_clear_pointer (&ed, raw_exif_data_free);
        g_free (filename);
        g_free (nfo_orientation);
        g_free (uri);