[shotwell] Remove superfluous parentheses

[Rico Tzschichholz <ricotz src gnome org>]

commit ec20147df422a340e7741586a193e50840bcb268
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Tue Oct 18 10:40:54 2016 +0200

    Remove superfluous parentheses

 plugins/shotwell-transitions/CircleEffect.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plugins/shotwell-transitions/CircleEffect.vala b/plugins/shotwell-transitions/CircleEffect.vala
index 862a578..b03d8fb 100644
--- a/plugins/shotwell-transitions/CircleEffect.vala
+++ b/plugins/shotwell-transitions/CircleEffect.vala
@@ -47,7 +47,7 @@ private class CircleEffect : Object, Transitions.Effect {
     public void paint(Transitions.Visuals visuals, Transitions.Motion motion, Cairo.Context ctx,
         int width, int height, int frame_number) {
         double alpha = motion.get_alpha(frame_number);
-        int radius = (int)((alpha) * Math.fmax(width,height));
+        int radius = (int)(alpha * Math.fmax(width,height));
         
         if (visuals.from_pixbuf != null) {
             Gdk.cairo_set_source_pixbuf(ctx, visuals.from_pixbuf, visuals.from_pos.x,