ubuntu-minimal is a metapackage.
Here's partial output of the
apt show command:
apt show ubuntu-minimal
Maintainer: Ubuntu Developers <firstname.lastname@example.org>
Installed-Size: 48.1 kB
Depends: adduser, apt, apt-utils, bzip2, console-setup, debconf, debconf-i18n, eject, init, initramfs-tools, iproute2, iputils-ping, isc-dhcp-client, kbd, kmod, less, locales, lsb-release, mawk, mount, netbase, netcat-openbsd, nplan, passwd, procps, python3, sensible-utils, sudo, tzdata, ubuntu-advantage-tools, ubuntu-keyring, udev, vim-tiny, whiptail
A metapackage is a list of software that specifies what is installed on your system during the initial installation process and when you upgrade from one version of your OS to another. See What are the downsides of removing ubuntu-desktop metapackage? for example.
Removing a metapackage is otherwise harmless.
While you maybe able to remove vim-tiny, the benefits would be negligible and somewhere down the line some other software you install may pull it back in.