android: Remove error checking for debugfs_create_dir()

It is expected that most callers should _ignore_ the errors
return by debugfs_create_dir() in binder_init().

Signed-off-by: Wang Ming <machel@vivo.com>
Link: https://lore.kernel.org/r/20230713080649.1893-1-machel@vivo.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>