[dia] [scan-build] Value stored to 'angle' is never read

[Hans Breuer <hans src gnome org>]

commit 1ae7a9087756163a1b7b9af7ac4595b56edc3084
Author: Hans Breuer <hans breuer org>
Date:   Sun Sep 7 20:17:46 2014 +0200

    [scan-build] Value stored to 'angle' is never read
    
    prop_matrix.c:209:5: warning: Value stored to 'angle' is never read
        angle = atan2 (prop->matrix->xy, prop->matrix->xx)*180/G_PI;
        ^       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    1 warning generated.

 lib/prop_matrix.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/lib/prop_matrix.c b/lib/prop_matrix.c
index 6ae6bf6..8c51ca0 100644
--- a/lib/prop_matrix.c
+++ b/lib/prop_matrix.c
@@ -206,7 +206,6 @@ matrixprop_reset_widget(MatrixProperty *prop, GtkWidget *widget)
 
     dia_matrix_get_angle_and_scales (prop->matrix, &a, &sx, &sy);
 
-    angle = atan2 (prop->matrix->xy, prop->matrix->xx)*180/G_PI;
     angle = -a*180/G_PI;
   }