fixed MSBuild test
@@ -2,16 +2,12 @@ import os
import platform
import unittest
-import mock
from nose.plugins.attrib import attr
from parameterized import parameterized
from conans.client import tools
-from conans.client.build.msbuild import MSBuild
-from conans.errors import ConanException
-from conans.model.version import Version
+from conans.model.ref import PackageReference
from conans.paths import CONANFILE
-from conans.test.utils.conanfile import MockConanfile, MockSettings
from conans.test.utils.tools import TestClient
from conans.test.utils.visual_project_files import get_vs_project_files
