I think that you will have to delete the A and the AAAA records and replace them with a CNAME record that matches
www.pointblue.ph. Or you could change the A and AAAA records to
old.pointblue.ph so that you can still access the site. This will only work if
c.storage.googleapis.com is set to handle any thing from the
pointblue.ph and not restricted to the
www.pointblue.ph subdomain. Note that those records are currently set to timeout after one hour so you may have to wait a while for DNS changes to propagate. Also if the
216.239.32.21 server is providing additional services on other ports, like SQL or something, this will break it.
As an alternative, you might replace the /index.html on
216.239.32.21 with a redirect to
www.pointblue.ph.
Please be careful. I hope nothing breaks. No warranty.