[mutter] util: Remove unused meta_debug_spew()

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 24c374ffb233b0db52ab879a0da8fb356ef3d65e
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Oct 1 15:04:44 2020 +0200

    util: Remove unused meta_debug_spew()
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1465

 src/core/util.c | 27 ---------------------------
 src/meta/util.h |  7 -------
 2 files changed, 34 deletions(-)
---
diff --git a/src/core/util.c b/src/core/util.c
index f16cf7ed37..2b3dc286ca 100644
--- a/src/core/util.c
+++ b/src/core/util.c
@@ -239,33 +239,6 @@ utf8_fputs (const char *str,
 }
 
 #ifdef WITH_VERBOSE_MODE
-void
-meta_debug_spew_real (const char *format, ...)
-{
-  va_list args;
-  gchar *str;
-  FILE *out;
-
-  g_return_if_fail (format != NULL);
-
-  if (!is_debugging)
-    return;
-
-  va_start (args, format);
-  str = g_strdup_vprintf (format, args);
-  va_end (args);
-
-  out = logfile ? logfile : stderr;
-
-  if (no_prefix == 0)
-    utf8_fputs ("Window manager: ", out);
-  utf8_fputs (str, out);
-
-  fflush (out);
-
-  g_free (str);
-}
-
 void
 meta_verbose_real (const char *format, ...)
 {
diff --git a/src/meta/util.h b/src/meta/util.h
index 94b320dae7..77a075a7a3 100644
--- a/src/meta/util.h
+++ b/src/meta/util.h
@@ -41,10 +41,6 @@ gboolean meta_is_syncing (void);
 META_EXPORT
 gboolean meta_is_wayland_compositor (void);
 
-META_EXPORT
-void meta_debug_spew_real (const char *format,
-                           ...) G_GNUC_PRINTF (1, 2);
-
 META_EXPORT
 void meta_verbose_real    (const char *format,
                            ...) G_GNUC_PRINTF (1, 2);
@@ -169,18 +165,15 @@ GPid meta_show_dialog (const char *type,
 /* To disable verbose mode, we make these functions into no-ops */
 #ifdef WITH_VERBOSE_MODE
 
-#define meta_debug_spew meta_debug_spew_real
 #define meta_verbose    meta_verbose_real
 #define meta_topic      meta_topic_real
 
 #else
 
 #  ifdef G_HAVE_ISO_VARARGS
-#    define meta_debug_spew(...)
 #    define meta_verbose(...)
 #    define meta_topic(...)
 #  elif defined(G_HAVE_GNUC_VARARGS)
-#    define meta_debug_spew(format...)
 #    define meta_verbose(format...)
 #    define meta_topic(format...)
 #  else