Fixed build error caused by TryGetAzureRoleInstanceIdNoThrow test

StackExchange.Redis.Tests/Config.cs

@@ -139,13 +139,6 @@ public void DefaultClientName()
             }
         }
         
-        [Test]
-        public void TryGetAzureRoleInstanceIdNoThrow()
-        {
-            ConfigurationOptions config = new ConfigurationOptions();
-            Assert.IsNull(config.TryGetAzureRoleInstanceIdNoThrow());
-        }
-
         [Test]
         public void ReadConfigWithConfigDisabled()
         {

StackExchange.Redis.Tests/ConnectionFailedErrors.cs

@@ -117,5 +117,11 @@ public void CheckFailureRecovered()
                 ClearAmbientFailures();
             }
         }
+
+        [Test]
+        public void TryGetAzureRoleInstanceIdNoThrow()
+        {
+            Assert.IsNull(ConnectionMultiplexer.TryGetAzureRoleInstanceIdNoThrow());
+        }
     }
 }