Removes members marked as obsolete (#138)

Author: danielwertheim

src/projects/EnsureThat/EnsureArg.Strings.cs

@@ -25,10 +25,6 @@ public static string IsNotNullOrEmpty([ValidatedNotNull] string value, [InvokerP
         public static string IsNotEmptyOrWhiteSpace(string value, [InvokerParameterName] string paramName = null, OptsFn optsFn = null)
             => Ensure.String.IsNotEmptyOrWhiteSpace(value, paramName, optsFn);
 
-        [Obsolete("This method will soon be deprecated. Use IsNotEmptyOrWhiteSpace instead.")]
-        public static string IsNotEmptyOrWhitespace(string value, [InvokerParameterName] string paramName = null, OptsFn optsFn = null)
-            => Ensure.String.IsNotEmptyOrWhiteSpace(value, paramName, optsFn);
-
         public static string IsNotEmpty(string value, [InvokerParameterName] string paramName = null, OptsFn optsFn = null)
             => Ensure.String.IsNotEmpty(value, paramName, optsFn);
 

src/projects/EnsureThat/EnsureThatStringExtensions.cs

@@ -18,10 +18,6 @@ public static void IsNotNullOrEmpty(this in StringParam param)
         public static void IsNotEmptyOrWhiteSpace(this in StringParam param)
             => Ensure.String.IsNotEmptyOrWhiteSpace(param.Value, param.Name, param.OptsFn);
 
-        [Obsolete("This method will soon be deprecated. Use IsNotEmptyOrWhiteSpace instead.")]
-        public static void IsNotEmptyOrWhitespace(this in StringParam param)
-            => Ensure.String.IsNotEmptyOrWhiteSpace(param.Value, param.Name, param.OptsFn);
-
         public static void IsNotEmpty(this in StringParam param)
             => Ensure.String.IsNotEmpty(param.Value, param.Name, param.OptsFn);