Remove duplicate test cases

Author: ViktorHofer

tests/CommandLine.Tests/Unit/Core/TypeConverterTests.cs

@@ -50,8 +50,6 @@ public static IEnumerable<object[]> ChangeType_scalars_source
                     new object[] {((long) int.MinValue - 1).ToString(), typeof (int), true, null},
 
                     new object[] {"1", typeof (uint), false, (uint) 1},
-                    new object[] {"0", typeof (uint), false, (uint) 0},
-                    new object[] {"-1", typeof (uint), true, null},
                     new object[] {uint.MaxValue.ToString(), typeof (uint), false, uint.MaxValue},
                     new object[] {uint.MinValue.ToString(), typeof (uint), false, uint.MinValue},
                     new object[] {((long) uint.MaxValue + 1).ToString(), typeof (uint), true, null},