Since all platforms have been moved to the new watchdog reset driver,
the legacy code can be removed safely.
Signed-off-by: NTomasz Figa <tomasz.figa@gmail.com>
Tested-by: NSylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>