remove --with-privsep-path

This has effectively been a no-op during the 5.7 release series and
nobody has yelped (other than being slightly confused about its
purpose). Remove it as an option, since the home dir of the privsep user
is always used as the actual privsep directory anyway.

INSTALL

@@ -64,8 +64,8 @@ On most Linux and BSD systems, something like should work:
  chmod 0755 /var/empty
 
 /var/empty here is a chroot directory used by ntpd for privilege separation of
-the DNS and NTP processes. This directory should not contain any files, must be
-owned by root, and must not be group or world-writable.
+the DNS and NTP processes. This directory should be completely empty, owned by
+root, and must not be group or world-writable.
 
 NOTE:
 If you installed a previous OpenNTPD release and created a /var/empty/ntp
@@ -90,17 +90,13 @@ As of OS X 10.10, something like this should work similarly
  dseditgroup -o create _ntp
  dscl . append /Groups/_ntp GroupMembership _ntp
 
-There are a few options to the configure script in addition to the ones
+There are few options to the configure script in addition to the ones
 provided by autoconf itself:
 
 --with-privsep-user=[user]
 	Specify unprivileged user used for privilege separation.  The default
-	is "_ntp".
-
---with-privsep-path=path
-	ntpd will always use the home directory of the privsep user
-	to chroot to, but specifying this parameter will change the
-	post-installation checks and instructions to match the specified path.
+	is "_ntp". The home directory of this user will be used for privilege
+	separation.
 
 If you need to pass special options to the compiler or linker, you
 can specify these as environment variables before running ./configure.

configure.ac

@@ -221,13 +221,7 @@ AC_ARG_WITH(privsep-user,
 )
 AC_SUBST(PRIVSEP_USER)
 
-AC_ARG_WITH(privsep-path,
-	[  --with-privsep-path=path Specify privilege separation chroot path],
-	[ AC_DEFINE_UNQUOTED(NTPD_CHROOT_DIR, "$withval",
-	    [Privilege separation chroot path])
-	  PRIVSEP_PATH=$withval ],
-	[ PRIVSEP_PATH=/var/empty ]
-)
+PRIVSEP_PATH=/var/empty
 AC_SUBST(PRIVSEP_PATH)
 
 AC_CONFIG_FILES([