removed irrelevant prototypes

Author: Marc Stern

apache2/modsecurity.h

@@ -705,8 +705,6 @@ struct msc_parm {
 
 /* Reusable functions */
 int acquire_global_lock(apr_global_mutex_t **lock, apr_pool_t *mp);
-int msr_global_mutex_lock(modsec_rec* msr, apr_global_mutex_t* lock, const char* fct);
-int msr_global_mutex_unlock(modsec_rec* msr, apr_global_mutex_t* lock, const char* fct);
 
 /* Engine functions */