dev-libs/libxml2: Remove unused version

BUG=b:270125897
TEST=CQ passes

Change-Id: I22440b00fbb0e6cabb31601bc4f05fb8bdb0d466
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/4290204
Auto-Submit: Allen Webb <allenwebb@google.com>
Reviewed-by: Allen Webb <allenwebb@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Allen Webb <allenwebb@google.com>
Commit-Queue: Allen Webb <allenwebb@google.com>
1 file changed