Nit: Clean up duplicate tests

- lead to errors during test discovery in VS

test/Microsoft.AspNet.Mvc.Core.Test/OptionDescriptors/DefaultValidationExcludeFiltersProviderTests.cs

@@ -39,7 +39,6 @@ namespace Microsoft.AspNet.Mvc.OptionDescriptors
         [Theory]
         [InlineData(typeof(BaseType))]
         [InlineData(typeof(UnRelatedType))]
-        [InlineData(typeof(UnRelatedType))]
         public void Add_RegisterDerivedType_BaseAndUnrealatedTypesAreNotExcluded(Type type)
         {
             // Arrange

test/Microsoft.AspNet.Mvc.FunctionalTests/InlineConstraintTests.cs

@@ -592,16 +592,6 @@ namespace Microsoft.AspNet.Mvc.FunctionalTests
                         ""
                     };
 
-                // Attribute Route, manId:int:min(10)? constraint
-                yield return new object[] 
-                    {
-                        "InlineConstraints_Products",
-                        "GetProductByManufacturerId",
-                        "manId",
-                        "1",
-                        ""
-                    };
-
                 // Attribute Route, dateTime:datetime constraint
                 yield return new object[] 
                     {

test/Microsoft.AspNet.Mvc.Razor.Test/Compilation/CompilerCacheTest.cs

@@ -105,7 +105,6 @@ namespace Microsoft.AspNet.Mvc.Razor
         [Theory]
         [InlineData(10000)]
         [InlineData(11000)]
-        [InlineData(10000)] // expected failure: same time and length
         public void GetOrAdd_UsesFilesFromCache_IfTimestampDiffers_ButContentAndLengthAreTheSame(long fileTimeUTC)
         {
             // Arrange