Drop references to updating over csup from build(7).

MFC after:	1 week

share/man/man7/build.7

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd June 17, 2014
+.Dd June 25, 2014
 .Dt BUILD 7
 .Os
 .Sh NAME
@@ -40,8 +40,7 @@ normally
 and
 .Pa /usr/ports .
 These directories may be initially empty or non-existent until updated with
-.Xr csup 1 ,
-.Xr svn 1 ,
+.Xr svn 1
 or
 .Xr portsnap 8 .
 Directory
@@ -616,7 +615,6 @@ make TARGET=sparc64 DESTDIR=/clients/sparc64 installworld
 .Ed
 .Sh SEE ALSO
 .Xr cc 1 ,
-.Xr csup 1 ,
 .Xr install 1 ,
 .Xr make 1 ,
 .Xr svn 1 ,