Revert "Calculate vertex buffer sizes from index buffer (#1663)" (#2544)

This reverts commit 10d649e6d3.

Ryujinx.Graphics.Gpu/GraphicsConfig.cs

@@ -33,11 +33,6 @@ namespace Ryujinx.Graphics.Gpu
         /// </summary>
         public static bool EnableMacroJit = true;
 
-        /// <summary>
-        /// Enables or disables vertex buffer size detection from the index buffer, for indexed draws.
-        /// </summary>
-        public static bool EnableIndexedVbSizeDetection = true;
-
         /// <summary>
         /// Title id of the current running game.
         /// Used by the shader cache.