STYLE: rm explicit void for parameterless function

Functions that take no parameters do not need an
explicit void designation.  Removing these unnecessary
designations provides more consistent code style and
allows for easier regular expression code maintenance.

%s/( *void *) *const *;/() const;/g
%s/( *void *) *;/();/g

Change-Id: Ib79f682e9b4b2d0afd79336bc97a85823798c7f2
Merge topic 'RemoveUnnecessaryVoid'

b123a3ca STYLE: rm explicit void for parameterless function