Revert "testing/virtualbox-additions-vanilla: replace the hardened"

This reverts commit 18e4a7f916.

This patch is broken (wrong checksums) and couples two unrelated
changes - rename of the abuild and version upgrade.

    >>> virtualbox-additions-vanilla: abuild 3.1.0-r4
    >>> virtualbox-additions-vanilla: Checking sanity of /home/buildozer/aports/testing/virtualbox-additions-vanilla/APKBUILD...
    >>> ERROR: virtualbox-additions-vanilla: vbox-kernel-module-src-5.2.6.tar.xz is missing in checksums

testing/virtualbox-additions-hardened/APKBUILD

@@ -1,12 +1,12 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 
-_flavor=vanilla
+_flavor=hardened
 _kpkg=linux-$_flavor
-_kver=4.14.15
+_kver=4.9.73
 _kpkgrel=0
 
 # when chaning _ver we *must* bump _mypkgrel
-_ver=5.2.6
+_ver=5.1.26
 _mypkgrel=0
 _name=virtualbox-additions
 
@@ -25,6 +25,7 @@ depends="${_kpkg}=${_kpkgver}"
 makedepends="linux-${_flavor}-dev"
 provides="${_name}-grsec=${pkgver}-r${pkgrel}"
 source="http://dev.gentoo.org/~polynomial-c/virtualbox/vbox-kernel-module-src-$_ver.tar.xz
+	virtualbox-modules-4.1.4-pax-const.patch
 	"
 
 builddir="$srcdir"/