This reverts the following three commits:70af921db6799977d9aaf1705ec197The feature was ill conceived, has terrible semantics, and has added nothing but regressions to the already fragile ipv6 stack. Fixes:f1705ec197("net: ipv6: Make address flushing on ifdown optional") Signed-off-by: David S. Miller <davem@davemloft.net>