Remove references to Sway in comments, and remove commented code.

seat.c

@@ -699,7 +699,6 @@ check_constraint_region(struct cg_seat *seat)
 				double sy = (boxes[0].y1 + boxes[0].y2) / 2.;
 
 				wlr_cursor_warp_closest(seat->cursor, NULL, sx, sy);
-				// cursor_rebase(seat);
 			}
 		}
 	}
@@ -723,7 +722,7 @@ handle_constraint_commit(struct wl_listener *listener, void *data)
 }
 
 /* This is where active_constraint is assigned. Also remember that everything
- * Sway has in sway_cursor is in cg_seat, because in Cage there's only a cursor per seat. */
+ * regarding cursor is in cg_seat, because in Cage there's only a cursor per seat. */
 void
 cg_cursor_constrain(struct cg_seat *seat, struct wlr_pointer_constraint_v1 *constraint)
 {