Delete successive assignments to the same location.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression i;
@@
*i = ...;
 i = ...;
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
                                left  = value & 0x000000ff;
                                right = (value & 0x0000ff00) >> 8;
                        } else {                                /* Turn it off (3)  */
-                               left  = 0;
                                left  = 0;
                                right = 0;
                        }