evas-wayland-shm: Remove logically dead code

Coverity reports that this bpp check is actuall dead code due to the
fact that bpp can never be < 0.

Fixes Coverity CID1357144

@fix

Signed-off-by: Chris Michael <cpmichael@osg.samsung.com>

src/modules/evas/engines/wayland_shm/evas_outbuf.c

@@ -559,7 +559,6 @@ _evas_outbuf_update_region_push(Outbuf *ob, RGBA_Image *update, int x, int y, in
    if (!(src = update->image.data)) return;
 
    bpp = depth / 8;
-   if (bpp <= 0) return;
 
    /* check for valid desination data */
    if (!(dst = ob->surface->funcs.data_get(ob->surface, &ww, &hh)))