build-x86-images: remove duplicate line

this was probably from resolving a merge conflict, it's basically a NOP

build-x86-images.sh

@@ -41,7 +41,6 @@ build_variant() {
     shift
     IMG=void-live-${ARCH}-${DATE}-${variant}.iso
     GRUB_PKGS="grub-i386-efi grub-x86_64-efi"
-    PKGS="dialog cryptsetup lvm2 mdadm void-docs-browse xtools-minimal xmirror $GRUB_PKGS"
     PKGS="dialog cryptsetup lvm2 mdadm void-docs-browse xtools-minimal xmirror espeakup $GRUB_PKGS"
     XORG_PKGS="xorg-minimal xorg-input-drivers xorg-video-drivers setxkbmap xauth font-misc-misc terminus-font dejavu-fonts-ttf alsa-plugins-pulseaudio"
     SERVICES="sshd"