Revert "Add a few missed files to ObsoleteFiles.inc"

This reverts commit 33175a5, because
some of the directories and files are still being installed.

Author: DimitryAndric

ObsoleteFiles.inc

@@ -51,15 +51,6 @@
 #   xargs -n1 | sort | uniq -d;
 # done
 
-# 20260707: Removed GNU subtree
-OLD_FILES+=usr/tests/gnu/Kyuafile
-OLD_FILES+=usr/tests/gnu/lib/Kyuafile
-OLD_DIRS+=usr/tests/gnu/lib
-OLD_DIRS+=usr/tests/gnu/usr.bin/diff
-OLD_FILES+=usr/tests/gnu/usr.bin/Kyuafile
-OLD_DIRS+=usr/tests/gnu/usr.bin
-OLD_DIRS+=usr/tests/gnu
-
 # 20260602: Removed by 0a36787e4c1f on 20210723
 OLD_FILES+=usr/share/locale/hr_HR.ISO8859-2/LC_MESSAGES
 OLD_FILES+=usr/share/locale/nl_BE.ISO8859-1/LC_MESSAGES