Debug|Generators: Disabled repeat generator link warning message

These are occuring so thick and fast that logging is pointless (and
negatively affecting performance).

Todo: Either revise the linking mechanism making this test redundant
(e.g., using a set of links), or rework particle system so that it
doesn't repeatedly attempt to link generators to sectors.

doomsday/client/src/world/generators.cpp

@@ -162,9 +162,11 @@ ptcgen_t *Generators::linkToList(ptcgen_t *gen, uint listIndex)
     {
         if(it->gen == gen)
         {
-            LOG_AS("Generators::linkToList");
-            LOG_DEBUG("Attempted repeat link of generator %p to list %u.")
-                    << de::dintptr(gen) << listIndex;
+            // Warning message disabled as these are occuring so thick and fast
+            // that logging is pointless (and negatively affecting performance).
+            //LOG_AS("Generators::linkToList");
+            //LOG_DEBUG("Attempted repeat link of generator %p to list %u.")
+            //        << de::dintptr(gen) << listIndex;
 
             return gen; // No, no...
         }