fix windows build

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11595 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_cpp.cpp

@@ -582,7 +582,6 @@ SWITCH_DECLARE(const char *)CoreSession::getVariable(char *var)
 
 SWITCH_DECLARE(void) CoreSession::execute(const char *app, const char *data)
 {
-	const switch_application_interface_t *application_interface;
 	this_check_void();
 	sanity_check_noreturn;