[mutter] cogl: Remove fixed-function workaround for point sprite coordinates

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

commit 71a2ba7a9868ce2e3de4671847439e05b7051b82
Author: Adam Jackson <ajax redhat com>
Date:   Thu Dec 19 16:10:23 2019 -0500

    cogl: Remove fixed-function workaround for point sprite coordinates
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/995

 cogl/cogl/driver/gl/cogl-pipeline-opengl.c | 21 ---------------------
 1 file changed, 21 deletions(-)
---
diff --git a/cogl/cogl/driver/gl/cogl-pipeline-opengl.c b/cogl/cogl/driver/gl/cogl-pipeline-opengl.c
index 4b16e22a1..b73e6b205 100644
--- a/cogl/cogl/driver/gl/cogl-pipeline-opengl.c
+++ b/cogl/cogl/driver/gl/cogl-pipeline-opengl.c
@@ -687,27 +687,6 @@ flush_layers_common_gl_state_cb (CoglPipelineLayer *layer, void *user_data)
       GE( ctx, glBindSampler (unit_index, sampler_state->sampler_object) );
     }
 
-  /* FIXME: If using GLSL the progend we will use gl_PointCoord
-   * instead of us needing to replace the texture coordinates but at
-   * this point we can't currently tell if we are using the fixed or
-   * glsl progend.
-   */
-#ifdef HAVE_COGL_GL
-  if (ctx->driver == COGL_DRIVER_GL &&
-      (layers_difference & COGL_PIPELINE_LAYER_STATE_POINT_SPRITE_COORDS))
-    {
-      CoglPipelineState change = COGL_PIPELINE_LAYER_STATE_POINT_SPRITE_COORDS;
-      CoglPipelineLayer *authority =
-        _cogl_pipeline_layer_get_authority (layer, change);
-      CoglPipelineLayerBigState *big_state = authority->big_state;
-
-      _cogl_set_active_texture_unit (unit_index);
-
-      GE (ctx, glTexEnvi (GL_POINT_SPRITE, GL_COORD_REPLACE,
-                          big_state->point_sprite_coords));
-    }
-#endif
-
   cogl_object_ref (layer);
   if (unit->layer != NULL)
     cogl_object_unref (unit->layer);