util: virlog: unexport virLogVMessage

Last usage out of virlog.c was removed by
commit 91268c715c
    node_device_udev: remove deprecated logging function

Also drop the virbuffer.h include - it seems it was never used
for anything else than the transitive stdarg.h include.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>

src/libvirt_private.syms

@@ -2475,7 +2475,6 @@ virLogSetFilters;
 virLogSetFromEnv;
 virLogSetOutputs;
 virLogUnlock;
-virLogVMessage;
 
 
 # util/virmacaddr.h

src/util/virlog.c

@@ -493,7 +493,8 @@ virLogSourceUpdate(virLogSourcePtr source)
  * Call the libvirt logger with some information. Based on the configuration
  * the message may be stored, sent to output or just discarded
  */
-void
+static void
+G_GNUC_PRINTF(7, 0)
 virLogVMessage(virLogSourcePtr source,
                virLogPriority priority,
                const char *filename,

src/util/virlog.h

@@ -22,7 +22,6 @@
 #pragma once
 
 #include "internal.h"
-#include "virbuffer.h"
 
 #ifdef PACKAGER_VERSION
 # ifdef PACKAGER
@@ -178,14 +177,6 @@ void virLogMessage(virLogSourcePtr source,
                    const char *funcname,
                    virLogMetadataPtr metadata,
                    const char *fmt, ...) G_GNUC_PRINTF(7, 8);
-void virLogVMessage(virLogSourcePtr source,
-                    virLogPriority priority,
-                    const char *filename,
-                    int linenr,
-                    const char *funcname,
-                    virLogMetadataPtr metadata,
-                    const char *fmt,
-                    va_list vargs) G_GNUC_PRINTF(7, 0);
 
 bool virLogProbablyLogMessage(const char *str);
 virLogOutputPtr virLogOutputNew(virLogOutputFunc f,