remove useless methods

Author: vfyjxf

src/main/java/com/glodblock/github/client/gui/GuiFluidCraftAmount.java

@@ -255,8 +255,4 @@ private void addQty( final int i )
         }
     }
 
-    protected String getBackground()
-    {
-        return "guis/craftAmt.png";
-    }
 }

src/main/java/com/glodblock/github/client/gui/GuiPatternValueAmount.java

@@ -237,8 +237,4 @@ private int getOriginalAmount(ItemStack stack) {
         }
     }
 
-    protected String getBackground() {
-        return "guis/craftAmt.png";
-    }
-
 }