fix minor compilation bug and unused variable

portlist.h

@@ -269,7 +269,7 @@ class PortList {
    * must be called before any PortList object will be created. */
   static void initializePortMap(int protocol, u16 *ports, int portcount);
   /* Free memory used by port_map. It should be done somewhere before quitting*/
-  static void PortList::freePortMap();
+  static void freePortMap();
   
   /* Add a new port to this list.  If the state has changed, it is
      OK to call this function to effect the change */

scan_engine.cc

@@ -3631,7 +3631,6 @@ void pos_scan(Target *target, u16 *portarray, int numports, stype scantype) {
   struct timeval now;
   struct connectsockinfo csi;
   struct rpcscaninfo rsi;
-  char hostname[1200];
   unsigned long j;
   struct serviceDeductions sd;
   bool doingOpenFiltered = false;