w1: no need to initialise statics to 0

Static variables do not need to be initialised to 0, because compiler
will initialise all uninitialised statics to 0. Thus, remove the
unneeded initializations.

Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Link: https://lore.kernel.org/r/20220508023400.102244-1-wangborong@cdjrlc.com


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>