A bit of cleanup and comments

Revert unneeded commit, remove backport patch, and add a comment

Closes #30 (closed)

recipes-core/fts/fts_%.bbappend

-# SPDX-FileCopyrightText: Huawei Inc.
-#
-# SPDX-License-Identifier: Apache-2.0
-
-FILES:${PN} += "${libdir}/*.a"