WAN: syncppp.c is no longer used by any kernel code. Remove it.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index 9b1f6ca..0a08126 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -6,7 +6,7 @@
# To add a new book the only step required is to add the book to the
# list of DOCBOOKS.
-DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml \
+DOCBOOKS := z8530book.xml mcabook.xml \
kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
procfs-guide.xml writing_usb_driver.xml networking.xml \
kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \