corba module: use the integrated mediacontrol API

modules/control/corba/Modules.am

 ## corba module declaration
 
-SOURCES_corba = corba.c mediacontrol-core.c mediacontrol-plugin.c
+SOURCES_corba = corba.c ../../../src/control/plugin.c
 
 nodist_SOURCES_corba = \
 	MediaControl-common.c \
@@ -18,7 +18,6 @@ endif
 CORBAIDLFILE = MediaControl.idl
 
 EXTRA_DIST += $(CORBAIDLFILE)
-EXTRA_DIST += mediacontrol-core.h
 BUILT_SOURCES += $(GENERATEDFILES)
 
 if ENABLE_CORBA

modules/control/corba/corba.c

@@ -27,8 +27,8 @@
 /* For CORBA */
 #include "MediaControl.h"
 #include "orbit/poa/portableserver-poa-type.h"
-#include "mediacontrol-core.h"
 
+#include <vlc/control.h>
 #include <vlc/vlc.h>
 #include <vlc/intf.h>
 #include <vlc/vout.h>