I have installed package ovirt-hosted-engine-setup-1.3.1.4-1.el7.centos.noarch on CentOS 7.2 and nvidia drivers installed as dependencies. If I manually try to remove nvidia drivers yum proposes to remove ovirt packages as well. I don't have any nvidia devices in my servers so I consider this a dependency bug. Please check the output below.

# rpm -qa '*nvidia*' '*ovirt*' 
nvidia-x11-drv-352.63-1.el7.elrepo.x86_64
ovirt-host-deploy-1.4.1-1.el7.centos.noarch
yum-plugin-nvidia-1.0.2-1.el7.elrepo.noarch
libgovirt-0.3.3-1.el7.x86_64
kmod-nvidia-352.63-1.el7.elrepo.x86_64
ovirt-release36-002-2.noarch
ovirt-engine-sdk-python-3.6.0.3-1.el7.centos.noarch
ovirt-hosted-engine-ha-1.3.3.6-1.el7.centos.noarch
ovirt-vmconsole-1.0.0-1.el7.centos.noarch
ovirt-vmconsole-host-1.0.0-1.el7.centos.noarch
ovirt-setup-lib-1.0.0-1.el7.centos.noarch
ovirt-hosted-engine-setup-1.3.1.4-1.el7.centos.noarch


# rpm -qa | grep nvidia | xargs yum history info
Loaded plugins: fastestmirror, nvidia
[nvidia]: No NVIDIA display devices found
Transaction ID : 18
Begin time     : Thu Dec 24 14:14:14 2015
Begin rpmdb    : 429:07df3601154cf590c9c5c0435c6dd92b88beb824
End time       :            14:18:53 2015 (279 seconds)
End rpmdb      : 697:c3c9771baf9f1abe81798d792470334cf2eb8ba6
User           : root <root>
Return-Code    : Success
Command Line   : -d 2 -y install ovirt-hosted-engine-setup
Transaction performed with:
    Installed     rpm-4.11.3-17.el7.x86_64                      @anaconda
    Installed     yum-3.4.3-132.el7.centos.0.1.noarch           @anaconda
    Installed     yum-plugin-fastestmirror-1.1.31-34.el7.noarch @anaconda
Packages Altered:
...
    Dep-Install kmod-nvidia-352.63-1.el7.elrepo.x86_64                       @elrepo
...
    Dep-Install nvidia-x11-drv-352.63-1.el7.elrepo.x86_64                    @elrepo
...
    Install     ovirt-hosted-engine-setup-1.3.1.4-1.el7.centos.noarch        @ovirt-3.6
...
    Dep-Install yum-plugin-nvidia-1.0.2-1.el7.elrepo.noarch                  @elrepo
Scriptlet output:
   1 depmod: WARNING: could not open /lib/modules/3.10.0-229.el7.x86_64/modules.order: No such file or directory
   2 depmod: WARNING: could not open /lib/modules/3.10.0-229.el7.x86_64/modules.builtin: No such file or directory
   3 gtk-query-immodules-2.0-64: error while loading shared libraries: libpangocairo-1.0.so.0: cannot open shared object file: No such file or directory
   4 warning: %post(gtk2-2.24.28-8.el7.x86_64) scriptlet failed, exit status 127
   5 gtk-query-immodules-3.0-64: error while loading shared libraries: libEGL.so.1: cannot open shared object file: No such file or directory
   6 Working. This may take some time ...
   7 Done.
history info

Regards,

Aleksey