revert inheritdoc change referencing internal method

Author: lonitra

xml/System.Drawing.Imaging/ColorPalette.xml

@@ -140,7 +140,6 @@
         <summary>Creates an optimal color palette based on the colors in a given bitmap.</summary>
         <returns>The optimal color palette for the specified bitmap.</returns>
         <remarks>To be added.</remarks>
-        <inheritdoc cref="M:System.Drawing.Imaging.ColorPalette.InitializePalette(System.Drawing.Imaging.PaletteType,System.Int32,System.Boolean,Windows.Win32.Foundation.IPointer{Windows.Win32.Graphics.GdiPlus.GpBitmap})" />
       </Docs>
     </Member>
     <Member MemberName="Entries">