remove a little code

Author: jonsequitur

src/System.CommandLine/Binding/Binder.cs

@@ -9,7 +9,7 @@ namespace System.CommandLine.Binding
     internal static class Binder
     {
         internal static bool IsMatch(this string parameterName, string alias) =>
-            String.Equals(alias?.RemovePrefix()
+            string.Equals(alias?.RemovePrefix()
                               .Replace("-", ""),
                           parameterName,
                           StringComparison.OrdinalIgnoreCase);

src/System.CommandLine/Option{T}.cs

@@ -80,31 +80,6 @@ public Option(
 
             Argument = new Argument<T>(getDefaultValue);
         }
-        public Option(
-            string alias,
-            T defaultValue,
-            string description = null) : base(alias, description)
-        {
-            if (defaultValue is null)
-            {
-                throw new ArgumentNullException(nameof(defaultValue));
-            }
-
-            Argument = new Argument<T>(() => defaultValue);
-        }
-
-        public Option(
-            string[] aliases,
-            T defaultValue,
-            string description = null) : base(aliases, description)
-        {
-            if (defaultValue is null)
-            {
-                throw new ArgumentNullException(nameof(defaultValue));
-            }
-
-            Argument = new Argument<T>(() => defaultValue);
-        }
 
         public override Argument Argument
         {

src/System.CommandLine/Symbol.cs

@@ -126,12 +126,6 @@ public void AddAlias(string alias)
             }
         }
 
-        protected void ClearAliases()
-        {
-            _aliases.Clear();
-            _rawAliases.Clear();
-        }
-
         public bool HasAlias(string alias)
         {
             if (string.IsNullOrWhiteSpace(alias))