modules/conf: Fix CID1039755 Unused pointer value
modules/conf: Fix CID1039755 Unused pointer value

If the function returned a handle to an object, the handle may be lost.

In _e_configure_fill_cat_list: Pointer returned from a function was
never used (CWE-563)

NB: Someone should have read EINA_LIST_FOREACH on this one ;)

Signed-off-by: Chris Michael <177aeddb9e34930a357ecd8dd2d21c80fe280c85@samsung.com>

tizenorg/platform.upstream.enlightenment,tasn/enlightenment,FlorentRevest/Enlightenment,tasn/enlightenment,rvandegrift/e,FlorentRevest/Enlightenment,rvandegrift/e,tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment,rvandegrift/e,tasn/enlightenment,FlorentRevest/Enlightenment