Make quagga.info in cvs actually useful for those who haven't latest
makeinfo:
* Don't attempt to generate it after every ./configure.
* Don't remove it while cleaning up.
diff --git a/doc/Makefile.am b/doc/Makefile.am
index a6e5ea9..a8d4bfd 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -15,7 +15,7 @@
 
 info_TEXINFOS = quagga.texi
 
-CLEANFILES = *.pdf quagga.info
+CLEANFILES = *.pdf
 
 # The figure sources
 figures_SOURCES = fig-normal-processing.eps \