perspective: do not remove culled faces from clickbox calculation

It seems culled faces are intentionally added to some models for their
clickboxes.

runelite-api/src/main/java/net/runelite/api/Perspective.java

@@ -494,16 +494,6 @@ public class Perspective
 		return clickBox;
 	}
 
-	/**
-	 * Determine if a triangle goes counter clockwise
-	 *
-	 * @return Returns true if the triangle goes counter clockwise and should be culled, otherwise false
-	 */
-	private static boolean cullFace(int x1, int y1, int x2, int y2, int x3, int y3)
-	{
-		return (y2 - y1) * (x3 - x2) - (x2 - x1) * (y3 - y2) < 0;
-	}
-
 	/**
 	 * Determine if a given point is off-screen.
 	 *
@@ -560,11 +550,6 @@ public class Perspective
 				continue;
 			}
 
-			if (cullFace(a.getX(), a.getY(), b.getX(), b.getY(), c.getX(), c.getY()))
-			{
-				continue;
-			}
-
 			if (isOffscreen(client, a) && isOffscreen(client, b) && isOffscreen(client, c))
 			{
 				continue;