update Metadata Test issue to exclude others + show initialization

Author: mythz

tests/ServiceStack.OrmLite.Tests/Issues/MetadataPrimaryKeyIssue.cs

@@ -1,42 +1,16 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using System.Threading.Tasks;
 using NUnit.Framework;
 using ServiceStack.OrmLite.Tests.Expression;
 
 namespace ServiceStack.OrmLite.Tests.Issues
 {
     public class MetadataPrimaryKeyIssue : OrmLiteTestBase
     {
-        [Test]
-        public void Should_return_same_model_reference()
-        {
-            var model1 = typeof(LetterFrequency).GetModelMetadata();
-            var model2 = typeof(LetterFrequency).GetModelMetadata();
-            Assert.AreEqual(model1, model2);
-        }
-
-        [Test]
-        public void Should_return_same_model_reference_multi_threaded()
-        {
-            Task<ModelDefinition> task1 = System.Threading.Tasks.Task.Run(() => typeof(LetterFrequency).GetModelMetadata());
-            Task<ModelDefinition> task2 = System.Threading.Tasks.Task.Run(() => typeof(LetterFrequency).GetModelMetadata());
-            System.Threading.Tasks.Task.WaitAll(task1, task2);
-
-            Assert.AreEqual(task1.Result, task2.Result);
-        }
-
-        [Test]
-        public void Should_generate_select_statement()
-        {
-            Assert.AreEqual(SelectStatement(), SelectStatement());
-        }
-
         [Test]
         public void Should_generate_select_statement_multi_threaded()
         {
+            typeof(LetterFrequency).GetModelMetadata();
+
             Task<string> task1 = System.Threading.Tasks.Task.Run(() => SelectStatement());
             Task<string> task2 = System.Threading.Tasks.Task.Run(() => SelectStatement());
             System.Threading.Tasks.Task.WaitAll(task1, task2);