Remove pipe->get/put_tile_rgba.

pipe_get/put_tile_rgba() now use pipe->get/put_tile internally.

Also simplify the <format>_get/put_tile_rgba() helper functions and clean up
some inconsitencies in them.

src/mesa/state_tracker/st_cb_readpixels.c

@@ -40,6 +40,7 @@
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
 #include "pipe/p_inlines.h"
+#include "pipe/util/p_tile.h"
 #include "st_context.h"
 #include "st_cb_readpixels.h"
 #include "st_cb_fbo.h"
@@ -210,7 +211,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
 
    /* Do a row at a time to flip image data vertically */
    for (i = 0; i < height; i++) {
-      pipe->get_tile_rgba(pipe, strb->surface, x, y, width, 1, df);
+      pipe_get_tile_rgba(pipe, strb->surface, x, y, width, 1, df);
       y += yStep;
       df += dfStride;
       if (!dfStride) {