diff --git a/test/Microsoft.AspNetCore.Cryptography.Internal.Test/project.json b/test/Microsoft.AspNetCore.Cryptography.Internal.Test/project.json
index 275ddd9910..1eac69a003 100644
--- a/test/Microsoft.AspNetCore.Cryptography.Internal.Test/project.json
+++ b/test/Microsoft.AspNetCore.Cryptography.Internal.Test/project.json
@@ -21,9 +21,6 @@
       ]
     },
     "net451": {
-      "dependencies": {
-        "xunit.runner.console": "2.1.0"
-      },
       "frameworkAssemblies": {
         "System.Runtime": "",
         "System.Threading.Tasks": ""
diff --git a/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/project.json b/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/project.json
index dbeaf4e74f..8a78b832fd 100644
--- a/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/project.json
+++ b/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/project.json
@@ -19,9 +19,6 @@
       ]
     },
     "net451": {
-      "dependencies": {
-        "xunit.runner.console": "2.1.0"
-      },
       "frameworkAssemblies": {
         "System.Runtime": "",
         "System.Threading.Tasks": ""
diff --git a/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/project.json b/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/project.json
index 3e077c2823..2452daa441 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/project.json
+++ b/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/project.json
@@ -20,8 +20,7 @@
     },
     "net451": {
       "dependencies": {
-        "Moq": "4.2.1312.1622",
-        "xunit.runner.console": "2.1.0"
+        "Moq": "4.2.1312.1622"
       },
       "frameworkAssemblies": {
         "System.Runtime": "",
diff --git a/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/project.json b/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/project.json
index 8a1c50c1a2..a030268267 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/project.json
+++ b/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/project.json
@@ -24,8 +24,7 @@
     },
     "net451": {
       "dependencies": {
-        "Moq": "4.2.1312.1622",
-        "xunit.runner.console": "2.1.0"
+        "Moq": "4.2.1312.1622"
       },
       "frameworkAssemblies": {
         "System.Runtime": "",
diff --git a/test/Microsoft.AspNetCore.DataProtection.Test.Shared/ExceptionAssert2.cs b/test/Microsoft.AspNetCore.DataProtection.Test.Shared/ExceptionAssert2.cs
index 36eab6e08d..ccc596b48c 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Test.Shared/ExceptionAssert2.cs
+++ b/test/Microsoft.AspNetCore.DataProtection.Test.Shared/ExceptionAssert2.cs
@@ -9,20 +9,6 @@ namespace Microsoft.AspNetCore.Testing
 {
     internal static class ExceptionAssert2
     {
-        /// <summary>
-        /// Verifies that the code throws an <see cref="ArgumentNullException"/>.
-        /// </summary>
-        /// <param name="testCode">A delegate to the code to be tested</param>
-        /// <param name="paramName">The name of the parameter that should throw the exception</param>
-        /// <returns>The <see cref="ArgumentNullException"/> that was thrown, when successful</returns>
-        /// <exception>Thrown when an exception was not thrown, or when an exception of the incorrect type is thrown</exception>
-        public static ArgumentNullException ThrowsArgumentNull(Action testCode, string paramName)
-        {
-            var ex = Assert.Throws<ArgumentNullException>(testCode);
-            Assert.Equal(paramName, ex.ParamName);
-            return ex;
-        }
-
         /// <summary>
         /// Verifies that the code throws a <see cref="CryptographicException"/>.
         /// </summary>
diff --git a/test/Microsoft.AspNetCore.DataProtection.Test/KeyManagement/KeyRingBasedDataProtectorTests.cs b/test/Microsoft.AspNetCore.DataProtection.Test/KeyManagement/KeyRingBasedDataProtectorTests.cs
index e85f52759a..2e510d5ccf 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Test/KeyManagement/KeyRingBasedDataProtectorTests.cs
+++ b/test/Microsoft.AspNetCore.DataProtection.Test/KeyManagement/KeyRingBasedDataProtectorTests.cs
@@ -29,7 +29,7 @@ namespace Microsoft.AspNetCore.DataProtection.KeyManagement
                 newPurpose: "purpose");
 
             // Act & assert
-            ExceptionAssert2.ThrowsArgumentNull(() => protector.Protect(plaintext: null), "plaintext");
+            ExceptionAssert.ThrowsArgumentNull(() => protector.Protect(plaintext: null), "plaintext");
         }
 
         [Fact]
@@ -134,7 +134,7 @@ namespace Microsoft.AspNetCore.DataProtection.KeyManagement
                 newPurpose: "purpose");
 
             // Act & assert
-            ExceptionAssert2.ThrowsArgumentNull(() => protector.Unprotect(protectedData: null), "protectedData");
+            ExceptionAssert.ThrowsArgumentNull(() => protector.Unprotect(protectedData: null), "protectedData");
         }
 
         [Fact]
diff --git a/test/Microsoft.AspNetCore.DataProtection.Test/SecretTests.cs b/test/Microsoft.AspNetCore.DataProtection.Test/SecretTests.cs
index 0d3ab20696..b9342ad765 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Test/SecretTests.cs
+++ b/test/Microsoft.AspNetCore.DataProtection.Test/SecretTests.cs
@@ -90,7 +90,7 @@ namespace Microsoft.AspNetCore.DataProtection
         public void Ctor_Pointer_WithNullPointer_ThrowsArgumentNull()
         {
             // Act & assert
-            ExceptionAssert2.ThrowsArgumentNull(
+            ExceptionAssert.ThrowsArgumentNull(
                 testCode: () => new Secret(null, 0),
                 paramName: "secret");
         }
@@ -228,7 +228,7 @@ namespace Microsoft.AspNetCore.DataProtection
             var secret = Secret.Random(16);
 
             // Act & assert
-            ExceptionAssert2.ThrowsArgumentNull(
+            ExceptionAssert.ThrowsArgumentNull(
                 testCode: () => secret.WriteSecretIntoBuffer(null, 100),
                 paramName: "buffer");
         }
diff --git a/test/Microsoft.AspNetCore.DataProtection.Test/project.json b/test/Microsoft.AspNetCore.DataProtection.Test/project.json
index c551926e27..d879702159 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Test/project.json
+++ b/test/Microsoft.AspNetCore.DataProtection.Test/project.json
@@ -24,8 +24,7 @@
     },
     "net451": {
       "dependencies": {
-        "Moq": "4.2.1312.1622",
-        "xunit.runner.console": "2.1.0"
+        "Moq": "4.2.1312.1622"
       },
       "frameworkAssemblies": {
         "System.Runtime": "",