[cogl] clip: make cogl_clip_ensure a NOP

[Robert Bragg <rbragg src gnome org>]

commit e2c758c105c044f16e3834a34c28a957c5da1596
Author: Robert Bragg <robert linux intel com>
Date:   Thu Nov 3 13:04:26 2011 +0000

    clip: make cogl_clip_ensure a NOP
    
    This api is deprecated and documented to be a NOP which wasn't actually
    true. This patch actually updates the function to be a NOP. Its nice
    that this gets rid of a point where we flush framebuffer state because
    we are looking to add a new VirtualFramebuffer interface which will need
    special consideration at each of the points we flush framebuffer state.
    
    It was a mistake that this API was ever published, we don't believe
    anyone is using the api but until we break api we have to keep the
    symbol. The documented semantics are vague enough that a NOP is ok since
    we never explicitly documented how the state would be flushed to GL so
    there would be no way to reliably use that state anyway.
    
    Reviewed-by: Neil Roberts <neil linux intel com>

 cogl/cogl-clip-state.c |   16 ++++++----------
 1 files changed, 6 insertions(+), 10 deletions(-)
---
diff --git a/cogl/cogl-clip-state.c b/cogl/cogl-clip-state.c
index 9de2a8f..a68a2f0 100644
--- a/cogl/cogl-clip-state.c
+++ b/cogl/cogl-clip-state.c
@@ -185,16 +185,12 @@ _cogl_clip_state_flush (CoglClipState *clip_state,
 void
 cogl_clip_ensure (void)
 {
-  CoglFramebuffer *framebuffer = cogl_get_draw_framebuffer ();
-  CoglClipState *clip_state;
-
-  clip_state = _cogl_framebuffer_get_clip_state (framebuffer);
-  /* Flushing the clip state doesn't cause the journal to be
-     flushed. This function may be being called by an external
-     application however so it makes sense to flush the journal
-     here */
-  _cogl_framebuffer_flush_journal (framebuffer);
-  _cogl_clip_state_flush (clip_state, framebuffer);
+  /* Do nothing.
+   *
+   * This API shouldn't be used by anyone and the documented semantics
+   * are basically vague enough that we can get away with doing
+   * nothing here.
+   */
 }
 
 static void