[mutter] cogl: Remove unused COGL_FEATURE_OFFSCREEN_MULTISAMPLE

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

commit 1f04b1ae69842934c96c76795a4abdcd8f9188f9
Author: Adam Jackson <ajax redhat com>
Date:   Thu Oct 17 20:52:02 2019 -0400

    cogl: Remove unused COGL_FEATURE_OFFSCREEN_MULTISAMPLE
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/866

 cogl/cogl/cogl-types.h                  | 2 --
 cogl/cogl/driver/gl/gl/cogl-driver-gl.c | 1 -
 2 files changed, 3 deletions(-)
---
diff --git a/cogl/cogl/cogl-types.h b/cogl/cogl/cogl-types.h
index 7989c440a..e663f8b08 100644
--- a/cogl/cogl/cogl-types.h
+++ b/cogl/cogl/cogl-types.h
@@ -114,7 +114,6 @@ typedef struct _CoglTextureVertex       CoglTextureVertex;
  * CoglFeatureFlags:
  * @COGL_FEATURE_TEXTURE_YUV: ycbcr conversion support
  * @COGL_FEATURE_TEXTURE_READ_PIXELS: glReadPixels() support
- * @COGL_FEATURE_OFFSCREEN_MULTISAMPLE: Multisample support on FBOs
  * @COGL_FEATURE_PBOS: PBO support
  *
  * Flags for the supported features.
@@ -125,7 +124,6 @@ typedef enum
 {
   COGL_FEATURE_TEXTURE_YUV            = (1 << 3),
   COGL_FEATURE_TEXTURE_READ_PIXELS    = (1 << 4),
-  COGL_FEATURE_OFFSCREEN_MULTISAMPLE  = (1 << 7),
   COGL_FEATURE_PBOS                  = (1 << 12),
 } CoglFeatureFlags;
 
diff --git a/cogl/cogl/driver/gl/gl/cogl-driver-gl.c b/cogl/cogl/driver/gl/gl/cogl-driver-gl.c
index 573fb4ecb..29c078c8d 100644
--- a/cogl/cogl/driver/gl/gl/cogl-driver-gl.c
+++ b/cogl/cogl/driver/gl/gl/cogl-driver-gl.c
@@ -424,7 +424,6 @@ _cogl_driver_update_features (CoglContext *ctx,
 
   if (ctx->glRenderbufferStorageMultisampleIMG)
     {
-      flags |= COGL_FEATURE_OFFSCREEN_MULTISAMPLE;
       COGL_FLAGS_SET (ctx->features,
                       COGL_FEATURE_ID_OFFSCREEN_MULTISAMPLE, TRUE);
     }