c/util: Renames and comment cleanup to improve readability.

Banish "crc" and "rr" as leftover artifacts of old names.

Part-of: <https://gitlab.freedesktop.org/monado/monado/-/merge_requests/2380>

src/xrt/compositor/util/comp_render.h

@@ -373,7 +373,7 @@ comp_render_gfx_dispatch(struct render_gfx *render,
  *
  * CS renderer control and dispatch - uses compute shaders
  *
- * Depends on @ref render_compute (often called `crc`)
+ * Depends on @ref render_compute
  *
  * @ingroup comp_render
  * @{

src/xrt/compositor/util/comp_render_cs.c

@@ -352,8 +352,8 @@ do_cs_clear(struct render_compute *render, const struct comp_render_dispatch_dat
 
 
 	render_compute_clear(        //
-	    render,                  // crc
-	    d->cs.target_image,      // target_image
+	    render,                  //
+	    d->cs.target_image,      //
 	    d->cs.target_unorm_view, // target_image_view
 	    target_viewport_datas);  // views
 }
@@ -393,11 +393,11 @@ do_cs_distortion_from_scratch(struct render_compute *render, const struct comp_r
 	}
 
 	render_compute_projection(   //
-	    render,                  // crc
-	    src_samplers,            // src_samplers
-	    src_image_views,         // src_image_views
-	    src_norm_rects,          // src_rects
-	    d->cs.target_image,      // target_image
+	    render,                  //
+	    src_samplers,            //
+	    src_image_views,         //
+	    src_norm_rects,          //
+	    d->cs.target_image,      //
 	    d->cs.target_unorm_view, // target_image_view
 	    target_viewport_datas);  // views
 }