Migrate mypy configuration to pyproject.toml

Change-Id: Ife39b55eb40c9cb8e61f1b2295b6d42cefe3a680
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

setup.cfg

@@ -85,40 +85,6 @@ console_scripts =
     nova-spicehtml5proxy = nova.cmd.spicehtml5proxy:main
     nova-status = nova.cmd.status:main
 
-[mypy]
-show_column_numbers = true
-show_error_context = true
-ignore_missing_imports = true
-follow_imports = skip
-incremental = true
-check_untyped_defs = true
-warn_unused_ignores = true
-files =
-  nova/compute/manager.py,
-  nova/compute/pci_placement_translator.py,
-  nova/crypto.py,
-  nova/filesystem.py,
-  nova/limit/local.py,
-  nova/limit/placement.py,
-  nova/network/neutron.py,
-  nova/pci/*.py,
-  nova/privsep/path.py,
-  nova/scheduler/client/report.py,
-  nova/scheduler/request_filter.py,
-  nova/scheduler/utils.py,
-  nova/virt/driver.py,
-  nova/virt/hardware.py,
-  nova/virt/libvirt/machine_type_utils.py,
-  nova/virt/libvirt/__init__.py,
-  nova/virt/libvirt/cpu/__init__.py,
-  nova/virt/libvirt/cpu/api.py,
-  nova/virt/libvirt/cpu/core.py,
-  nova/virt/libvirt/driver.py,
-  nova/virt/libvirt/event.py,
-  nova/virt/libvirt/guest.py,
-  nova/virt/libvirt/host.py,
-  nova/virt/libvirt/utils.py
-
 [codespell]
 skip = *.po,*.js,*.css,*.html,*.svg,HACKING.py,*hacking*,*build*,*_static*,doc/dictionary.txt,*.pyc,*.inv,*.gz,*.jpg,*.png,*.vsd,*.graffle,*.json
 count =