watchdog: Remove drivers for W83697HF and W83697UG

Since both chips are now supported by the w83627hf watchdog driver,
the chip specific drivers are no longer needed and can be removed.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --cc drivers/watchdog/Kconfig
Simple merge

diff --cc drivers/watchdog/Makefile
Simple merge

diff --cc drivers/watchdog/w83697hf_wdt.c
Simple merge

diff --cc drivers/watchdog/w83697ug_wdt.c
Simple merge