openvpn: bump version to 2.4.0

--enable-password-save option has been removed
(https://github.com/OpenVPN/openvpn/commit/9ffd00e7541d83571b9eec087c6b3545ff68441f). Since
it now defaults to "enabled" in the upstream package, there is no
point in adding Config.in.legacy support for it: Config.in.legacy
logic only kicks in when the option is enabled, but the upstream
package precisely preserve the compatibility with this situation.

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/openvpn/Config.in

@@ -28,10 +28,4 @@ config BR2_PACKAGE_OPENVPN_SMALL
 	  You loose eurephia, debugging info, help messages and more.
 	  It saves around 100 KiB in binary file size.
 
-config BR2_PACKAGE_OPENVPN_PWSAVE
-	bool "Allow passwords in files"
-	help
-	  Allow --askpass and --auth-user-pass passwords to be read
-	  from a file.
-
 endif

package/openvpn/openvpn.hash

@@ -1,2 +1,2 @@
 # Locally calculated
-sha256 f3a0d0eaf8d544409f76a9f2a238a0cd3dde9e1a9c1f98ac732a8b572bcdee98  openvpn-2.3.14.tar.xz
+sha256 6f23ba49a1dbeb658f49c7ae17d9ea979de6d92c7357de3d55cd4525e1b2f87e  openvpn-2.4.0.tar.xz

package/openvpn/openvpn.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-OPENVPN_VERSION = 2.3.14
+OPENVPN_VERSION = 2.4.0
 OPENVPN_SOURCE = openvpn-$(OPENVPN_VERSION).tar.xz
 OPENVPN_SITE = http://swupdate.openvpn.net/community/releases
 OPENVPN_DEPENDENCIES = host-pkgconf openssl
@@ -42,12 +42,6 @@ else
 OPENVPN_CONF_OPTS += --disable-lzo
 endif
 
-ifeq ($(BR2_PACKAGE_OPENVPN_PWSAVE),y)
-OPENVPN_CONF_OPTS += --enable-password-save
-else
-OPENVPN_CONF_OPTS += --disable-password-save
-endif
-
 define OPENVPN_INSTALL_TARGET_CMDS
 	$(INSTALL) -m 755 $(@D)/src/openvpn/openvpn \
 		$(TARGET_DIR)/usr/sbin/openvpn