removed a stray kernel-patch reference

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@801 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

Attic/appendixc/packages.xml

@@ -18,7 +18,6 @@ package quicker.
 &ac-gzip;
 &ac-gzip-patch;
 &ac-kernel;
-&ac-kernel-patch;
 &ac-make;
 &ac-mawk;
 &ac-patch;