Imported Upstream version 5.10.0.47

Former-commit-id: d0813289fa2d35e1f8ed77530acb4fb1df441bc0

mcs/class/System.ServiceModel/Test/MetadataTests/MetadataSamples.cs

@@ -23,6 +23,7 @@
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
+#if !MOBILE && !XAMMAC_4_5
 using System;
 using System.IO;
 using System.Reflection;
@@ -439,3 +440,4 @@ namespace MonoTests.System.ServiceModel.MetadataTests {
 		#endregion
 	}
 }
+#endif