Interfaces now slow down with failed crafting attempts.

Cleanup of unneeded tracking of failed attempts of MultiCraftingTracker.
Followup of #1905

src/main/java/appeng/helpers/MultiCraftingTracker.java

@@ -46,7 +46,6 @@ public class MultiCraftingTracker
 
 	private Future<ICraftingJob>[] jobs = null;
 	private ICraftingLink[] links = null;
-	private int failedCraftingAttempts = 0;
 
 	public MultiCraftingTracker( final ICraftingRequester o, final int size )
 	{
@@ -54,11 +53,6 @@ public class MultiCraftingTracker
 		this.size = size;
 	}
 
-	public int getFailedCraftingAttempts()
-	{
-		return this.failedCraftingAttempts;
-	}
-
 	public void readFromNBT( final NBTTagCompound extra )
 	{
 		for( int x = 0; x < this.size; x++ )
@@ -116,15 +110,10 @@ public class MultiCraftingTracker
 
 						if( link != null )
 						{
-							this.failedCraftingAttempts = Math.max( 0, this.failedCraftingAttempts - 1 );
-
 							this.setLink( x, link );
+
+							return true;
 						}
-						else
-						{
-							this.failedCraftingAttempts = Math.min( 10, this.failedCraftingAttempts + 1 );
-						}
-						return true;
 					}
 				}
 				catch( final InterruptedException e )