Revert "Improvement : connected component (island) fully explored"

Not an improvement, the computation is slower
This reverts commit c7a25a9d

src/main/java/fr/pasteur/ida/zellige/utils/islandSearch/World.java

@@ -145,6 +145,11 @@ public class World
                 }
                 island.add( s );
             }
+            if ( island.size() > islandSize  )
+            {
+                island.reset();
+                return island;
+            }
         }
         island.reset();
         return island;