Revert "st/xorg: Debug fallbacks for composite as well"

This commit included a change that should have been in
its own commit, and turns out that you can do what was
suposed to go in it in much better way as well.

This reverts commit 5080e8bea6.

src/gallium/state_trackers/xorg/xorg_exa.c

@@ -215,12 +215,8 @@ ExaPrepareAccess(PixmapPtr pPix, int index)
 #endif
 					PIPE_TRANSFER_READ_WRITE,
 					0, 0, priv->tex->width[0], priv->tex->height[0]);
-	if (!priv->map_transfer)
-#ifdef EXA_MIXED_PIXMAPS
+        if (!priv->map_transfer)
 	    return FALSE;
-#else
-	    FatalError("failed to create transfer\n");
-#endif
 
 	pPix->devPrivate.ptr =
 	    exa->scrn->transfer_map(exa->scrn, priv->map_transfer);
@@ -322,10 +318,7 @@ ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
 #if DISABLE_ACCEL
     return FALSE;
 #else
-    if (xorg_solid_bind_state(exa, priv, fg))
-	return TRUE;
-    else
-	XORG_FALLBACK("xorg_solid_bind_state failed\n");
+    return xorg_solid_bind_state(exa, priv, fg);
 #endif
 }
 
@@ -503,14 +496,11 @@ ExaPrepareComposite(int op, PicturePtr pSrcPicture,
    (void) exa;
    return FALSE;
 #else
-   if (xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
-                                 pDstPicture,
-                                 pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
-                                 pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
-                                 exaGetPixmapDriverPrivate(pDst)))
-      return TRUE;
-   else
-      XORG_FALLBACK("xorg_composite_bind_state failed");
+   return xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
+                                    pDstPicture,
+                                    pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
+                                    pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
+                                    exaGetPixmapDriverPrivate(pDst));
 #endif
 }
 
@@ -536,17 +526,15 @@ ExaCheckComposite(int op,
 		  PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 		  PicturePtr pDstPicture)
 {
-   ScreenPtr pScreen = pDstPicture->pDrawable->pScreen;
-   ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-   modesettingPtr ms = modesettingPTR(pScrn);
-
-   if (xorg_composite_accelerated(op,
-                                  pSrcPicture,
-                                  pMaskPicture,
-                                  pDstPicture))
-      return TRUE;
-   else
-      XORG_FALLBACK("xorg_composite_accelerated failed");
+   boolean accelerated = xorg_composite_accelerated(op,
+                                                    pSrcPicture,
+                                                    pMaskPicture,
+                                                    pDstPicture);
+#if DEBUG_PRINT
+   debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
+                op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
+#endif
+   return accelerated;
 }
 
 static void *