diff --git a/src/cairo-path-fixed.c b/src/cairo-path-fixed.c
index 3befe42c8..9819353b3 100644
--- a/src/cairo-path-fixed.c
+++ b/src/cairo-path-fixed.c
@@ -488,7 +488,6 @@ _cairo_path_fixed_curve_to (cairo_path_fixed_t	*path,
 {
     cairo_status_t status;
     cairo_point_t point[3];
-    cairo_slope_t slope, tangent;
 
     /* make sure subpaths are started properly */
     if (! path->has_current_point) {
@@ -503,17 +502,6 @@ _cairo_path_fixed_curve_to (cairo_path_fixed_t	*path,
     point[0].x = x0; point[0].y = y0;
     point[1].x = x1; point[1].y = y1;
     point[2].x = x2; point[2].y = y2;
-
-    _cairo_slope_init (&slope, &path->current_point, &point[2]);
-    _cairo_slope_init (&tangent, &path->current_point, &point[0]);
-    if (_cairo_slope_compare (&slope, &tangent) == 0) {
-	_cairo_slope_init (&tangent, &point[1], &point[2]);
-	if (_cairo_slope_compare (&slope, &tangent) == 0) {
-	    /* just a straight line... */
-	    return _cairo_path_fixed_line_to (path, x2, y2);
-	}
-    }
-
     status = _cairo_path_fixed_add (path, CAIRO_PATH_OP_CURVE_TO, point, 3);
     if (unlikely (status))
 	return status;