[mutter] clutter: Remove unused CLUTTER_FEATURE_TEXTURE_READ_PIXELS

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 5e0989532e2f002540736bbf15715e11a756581e
Author: Adam Jackson <ajax redhat com>
Date:   Thu Oct 17 21:01:44 2019 -0400

    clutter: Remove unused CLUTTER_FEATURE_TEXTURE_READ_PIXELS
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/866

 clutter/clutter/clutter-enums.h   | 2 --
 clutter/clutter/clutter-feature.c | 3 ---
 2 files changed, 5 deletions(-)
---
diff --git a/clutter/clutter/clutter-enums.h b/clutter/clutter/clutter-enums.h
index c91f4cbad..10f8d345f 100644
--- a/clutter/clutter/clutter-enums.h
+++ b/clutter/clutter/clutter-enums.h
@@ -971,7 +971,6 @@ typedef enum
  * ClutterFeatureFlags:
  * @CLUTTER_FEATURE_SWAP_THROTTLE: Set if backend throttles buffer swaps.
  * @CLUTTER_FEATURE_TEXTURE_YUV: Set if YUV based textures supported.
- * @CLUTTER_FEATURE_TEXTURE_READ_PIXELS: Set if texture pixels can be read.
  * @CLUTTER_FEATURE_STAGE_STATIC: Set if stage size if fixed (i.e framebuffer)
  * @CLUTTER_FEATURE_STAGE_CURSOR: Set if stage has a graphical cursor.
  * @CLUTTER_FEATURE_SHADERS_GLSL: Set if the backend supports GLSL shaders.
@@ -988,7 +987,6 @@ typedef enum
 {
   CLUTTER_FEATURE_SWAP_THROTTLE          = (1 << 3),
   CLUTTER_FEATURE_TEXTURE_YUV            = (1 << 4),
-  CLUTTER_FEATURE_TEXTURE_READ_PIXELS    = (1 << 5),
   CLUTTER_FEATURE_STAGE_STATIC           = (1 << 6),
   CLUTTER_FEATURE_STAGE_CURSOR           = (1 << 8),
   CLUTTER_FEATURE_SHADERS_GLSL           = (1 << 9),
diff --git a/clutter/clutter/clutter-feature.c b/clutter/clutter/clutter-feature.c
index 2848c0a9b..b3c9fade8 100644
--- a/clutter/clutter/clutter-feature.c
+++ b/clutter/clutter/clutter-feature.c
@@ -67,9 +67,6 @@ clutter_features_from_cogl (guint cogl_flags)
   if (cogl_flags & COGL_FEATURE_TEXTURE_YUV)
     clutter_flags |= CLUTTER_FEATURE_TEXTURE_YUV;
   
-  if (cogl_flags & COGL_FEATURE_TEXTURE_READ_PIXELS)
-    clutter_flags |= CLUTTER_FEATURE_TEXTURE_READ_PIXELS;
-  
   clutter_flags |= CLUTTER_FEATURE_SHADERS_GLSL;
   
   clutter_flags |= CLUTTER_FEATURE_OFFSCREEN;