C++03 bound functions are not available in C++17; remove

This makes me a little sad, it's time to move to C++11 or greater.

src/network/transportsender-impl.h

@@ -360,12 +360,23 @@ void TransportSender<MyState>::process_acknowledgment_through( uint64_t ack_num
 {
   /* Ignore ack if we have culled the state it's acknowledging */
 
-  if ( sent_states.end() !=
-       find_if( sent_states.begin(), sent_states.end(),
-		bind2nd( mem_fun_ref( &TimestampedState<MyState>::num_eq ), ack_num ) ) ) {
-    sent_states.remove_if( bind2nd( mem_fun_ref( &TimestampedState<MyState>::num_lt ), ack_num ) );
+  typename sent_states_type::const_iterator i;
+  for ( i = sent_states.begin(); i != sent_states.end(); i++ ) {
+    if ( i->num == ack_num ) {
+      break;
+    }
   }
 
+  if ( i != sent_states.end() ) {
+    for ( i = sent_states.begin(); i != sent_states.end(); ) {
+      typename sent_states_type::const_iterator i_next = i;
+      i_next++;
+      if ( i->num < ack_num ) {
+	sent_states.erase( i );
+      }
+      i = i_next;
+    }
+  }
   assert( !sent_states.empty() );
 }
 

src/network/transportstate.h

@@ -45,10 +45,6 @@ namespace Network {
     TimestampedState( uint64_t s_timestamp, uint64_t s_num, const State &s_state )
       : timestamp( s_timestamp ), num( s_num ), state( s_state )
     {}
-
-    /* For use with find_if, remove_if */
-    bool num_eq( uint64_t v ) const { return num == v; }
-    bool num_lt( uint64_t v ) const { return num <  v; }
   };
 }