pmb.kconfig: refactor to remove args

pmb/build/__init__.py

@@ -2,7 +2,6 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 from pmb.build.init import init, init_abuild_minimal, init_compiler
 from pmb.build.envkernel import package_kernel
-from pmb.build.kconfig import menuconfig
 from pmb.build.newapkbuild import newapkbuild
 from pmb.build.other import copy_to_buildpath, get_status, index_repo
 from .backend import mount_pmaports