[mutter] cogl: Remove unused TEXTURE_RECTANGLE feature flag

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

commit 9ab3a02a8ab5d37240bb10b952b1ea959977d2cd
Author: Adam Jackson <ajax redhat com>
Date:   Thu Apr 18 12:32:32 2019 -0400

    cogl: Remove unused TEXTURE_RECTANGLE feature flag
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/546

 cogl/cogl/cogl-context.h                | 3 ---
 cogl/cogl/cogl-types.h                  | 2 --
 cogl/cogl/driver/gl/gl/cogl-driver-gl.c | 7 -------
 cogl/test-fixtures/test-utils.c         | 6 ------
 4 files changed, 18 deletions(-)
---
diff --git a/cogl/cogl/cogl-context.h b/cogl/cogl/cogl-context.h
index a32e38dba..ae501bdbb 100644
--- a/cogl/cogl/cogl-context.h
+++ b/cogl/cogl/cogl-context.h
@@ -174,8 +174,6 @@ cogl_is_context (void *object);
  * experimental since it's only useable with experimental API... */
 /**
  * CoglFeatureID:
- * @COGL_FEATURE_ID_TEXTURE_RECTANGLE: Support for rectangular
- *    textures with non-normalized texture coordinates.
  * @COGL_FEATURE_ID_TEXTURE_RG: Support for
  *    %COGL_TEXTURE_COMPONENTS_RG as the internal components of a
  *    texture.
@@ -219,7 +217,6 @@ cogl_is_context (void *object);
  */
 typedef enum _CoglFeatureID
 {
-  COGL_FEATURE_ID_TEXTURE_RECTANGLE = 1,
   COGL_FEATURE_ID_OFFSCREEN,
   COGL_FEATURE_ID_OFFSCREEN_MULTISAMPLE,
   COGL_FEATURE_ID_ONSCREEN_MULTIPLE,
diff --git a/cogl/cogl/cogl-types.h b/cogl/cogl/cogl-types.h
index 70b2937a5..ca3dbc85d 100644
--- a/cogl/cogl/cogl-types.h
+++ b/cogl/cogl/cogl-types.h
@@ -315,7 +315,6 @@ typedef enum /*< prefix=COGL_PIXEL_FORMAT >*/
 
 /**
  * CoglFeatureFlags:
- * @COGL_FEATURE_TEXTURE_RECTANGLE: ARB_texture_rectangle support
  * @COGL_FEATURE_TEXTURE_YUV: ycbcr conversion support
  * @COGL_FEATURE_TEXTURE_READ_PIXELS: glReadPixels() support
  * @COGL_FEATURE_OFFSCREEN: FBO support
@@ -344,7 +343,6 @@ typedef enum /*< prefix=COGL_PIXEL_FORMAT >*/
  */
 typedef enum
 {
-  COGL_FEATURE_TEXTURE_RECTANGLE      = (1 << 1),
   COGL_FEATURE_TEXTURE_YUV            = (1 << 3),
   COGL_FEATURE_TEXTURE_READ_PIXELS    = (1 << 4),
   COGL_FEATURE_OFFSCREEN              = (1 << 6),
diff --git a/cogl/cogl/driver/gl/gl/cogl-driver-gl.c b/cogl/cogl/driver/gl/gl/cogl-driver-gl.c
index 57afe5e32..fb36df2b8 100644
--- a/cogl/cogl/driver/gl/gl/cogl-driver-gl.c
+++ b/cogl/cogl/driver/gl/gl/cogl-driver-gl.c
@@ -456,13 +456,6 @@ _cogl_driver_update_features (CoglContext *ctx,
                       COGL_FEATURE_ID_MAP_BUFFER_FOR_WRITE, TRUE);
     }
 
-  if (_cogl_check_extension ("GL_ARB_texture_rectangle", gl_extensions))
-    {
-      flags |= COGL_FEATURE_TEXTURE_RECTANGLE;
-      COGL_FLAGS_SET (ctx->features,
-                      COGL_FEATURE_ID_TEXTURE_RECTANGLE, TRUE);
-    }
-
   if (ctx->glEGLImageTargetTexture2D)
     COGL_FLAGS_SET (private_features,
                     COGL_PRIVATE_FEATURE_TEXTURE_2D_FROM_EGL_IMAGE, TRUE);
diff --git a/cogl/test-fixtures/test-utils.c b/cogl/test-fixtures/test-utils.c
index c77a90a7c..b8af0b6d1 100644
--- a/cogl/test-fixtures/test-utils.c
+++ b/cogl/test-fixtures/test-utils.c
@@ -24,12 +24,6 @@ check_flags (TestFlags flags,
       return FALSE;
     }
 
-  if (flags & TEST_REQUIREMENT_TEXTURE_RECTANGLE &&
-      !cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_RECTANGLE))
-    {
-      return FALSE;
-    }
-
   if (flags & TEST_REQUIREMENT_TEXTURE_RG &&
       !cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_RG))
     {