ecore_x: removing useless assignment pointer.

Summary:
The assignment to size has no effect on the caller and compiler
complain about it. Do shutdown compiler complain in a more reliable
way.

Signed-off-by:
Srivardhan Hebbar <sri.hebbar@samsung.com>

Reviewers: cedric

Subscribers: cedric

Differential Revision: https://phab.enlightenment.org/D3156

Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>

src/lib/ecore_x/xlib/ecore_x_cursor.c

@@ -245,7 +245,7 @@ ecore_x_cursor_size_set(int size)
    XcursorSetDefaultSize(_ecore_x_disp, size);
    if (_ecore_xlib_sync) ecore_x_sync();
 #else /* ifdef ECORE_XCURSOR */
-   size = 0;
+   (void) size;
 #endif /* ifdef ECORE_XCURSOR */
 }