xpra: drop outdated patch for xf86videodummy

--- a/src/dummy.h	2016-12-17 23:33:33.279533389 +0100

+++ b/src/dummy.h	2016-12-17 23:33:56.695739166 +0100

@@ -69,7 +69,7 @@

     int overlay_offset;

     int videoKey;

     int interlace;

-    dummy_colors colors[256];

+    dummy_colors colors[1024];

     pointer* FBBase;

     Bool        (*CreateWindow)() ;     /* wrapped CreateWindow */

     Bool prop;

--- a/src/dummy_driver.c	2016-12-17 23:33:47.446657886 +0100

+++ b/src/dummy_driver.c	2016-12-17 23:33:56.696739175 +0100

@@ -317,6 +317,7 @@

 	case 15:

 	case 16:

 	case 24:

+        case 30:

 	    break;

 	default:

 	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,

@@ -331,8 +332,8 @@

 	pScrn->rgbBits = 8;

     /* Get the depth24 pixmap format */

-    if (pScrn->depth == 24 && pix24bpp == 0)

-	pix24bpp = xf86GetBppFromDepth(pScrn, 24);

+    if (pScrn->depth >= 24 && pix24bpp == 0)

+	pix24bpp = xf86GetBppFromDepth(pScrn, pScrn->depth);

     /*

      * This must happen after pScrn->display has been set because

@@ -623,7 +624,7 @@

     if(!miCreateDefColormap(pScreen))

 	return FALSE;

-    if (!xf86HandleColormaps(pScreen, 256, pScrn->rgbBits,

+    if (!xf86HandleColormaps(pScreen, 1024, pScrn->rgbBits,

                          DUMMYLoadPalette, NULL, 

                          CMAP_PALETTED_TRUECOLOR 

 			     | CMAP_RELOAD_ON_MODE_SWITCH))

      ./0002-Constant-DPI.patch

      # https://github.com/Xpra-org/xpra/issues/349

      ./0003-fix-pointer-limits.patch

      # patch provided by Xpra upstream

      ./0005-support-for-30-bit-depth-in-dummy-driver.patch

    ];

  });