Make font fallbacking the default option

Source/Engine/UI/GUI/Style.cs

@@ -69,12 +69,6 @@ namespace FlaxEngine.GUI
             set => _fontSmall = new FontReference(value);
         }
 
-        /// <summary>
-        /// The fallback fonts to use if the primary font can't render the char.
-        /// </summary>
-        [EditorOrder(50)]
-        public FallbackFonts Fallbacks;
-
         /// <summary>
         /// The background color.
         /// </summary>