(svn r17786) -Fix [FS#3265]: graphical glitches (matrices/scrollbars with wrong 'size') upon reiniting windows

src/window_gui.h

@@ -257,17 +257,6 @@ public:
 		if (this->cap + this->pos > this->count) this->pos = max(0, this->count - this->cap);
 	}
 
-	/**
-	 * Updates the capacity by adding/removing a number of (visible) elements.
-	 * @param difference the difference in capacity
-	 * @note updates the position if needed
-	 */
-	void UpdateCapacity(int difference)
-	{
-		if (difference == 0) return;
-		this->SetCapacity(this->cap + difference);
-	}
-
 	/**
 	 * Sets the position of the first visible element
 	 * @param position the position of the element