guile: don't extern-c'ify libguile

Already has it... seems to break compilation on some machines?

guile/mu-guile-message.cc

@@ -18,11 +18,7 @@
 */
 #include "mu-guile-message.hh"
 
-extern "C" {
-#include "libguile/scm.h"
-#include "libguile/strings.h"
-}
-
+#include <libguile.h>
 #include "message/mu-message.hh"
 #include "utils/mu-utils.hh"
 #include <config.h>

guile/mu-guile-message.hh

@@ -24,7 +24,7 @@
  * Initialize this mu guile module.
  *
  * @param data
- *
+q *
  * @return
  */
 extern "C" {

guile/mu-guile.cc

@@ -26,9 +26,7 @@
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wredundant-decls"
-extern "C" {
 #include <libguile.h>
-}
 #pragma GCC diagnostic pop
 
 #include <mu-runtime.hh>

guile/mu-guile.hh

@@ -21,9 +21,7 @@
 #define __MU_GUILE_H__
 
 #include <glib.h>
-extern "C" {
 #include <libguile.h>
-}
 #include <mu-query.hh>
 
 /**

lib/mu-script.cc

@@ -23,9 +23,7 @@
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wredundant-decls"
-extern "C" {
 #include <libguile.h>
-}
 #pragma GCC diagnostic pop
 #endif /*BUILD_GUILE*/