of: remove duplicate declarations of __of_*_sysfs() functions

of: remove duplicate declarations of __of_*_sysfs() functions

When CONFIG_OF_KOBJ was introduced in commit adb74786d8ad ("of: make
kobject and bin_attribute support configurable") and #ifdef-ed
versions of these declarations got added, the originals didn't get
removed.

Fixes: adb74786d8ad ("of: make kobject and bin_attribute support configurable")
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Link: https://lore.kernel.org/r/20211006061943.8472-1-zev@bewilderbeest.net
Signed-off-by: Rob Herring <robh@kernel.org>