Remove unused property

src/Microsoft.Tye.Core/Extension.cs

@@ -8,8 +8,6 @@ namespace Microsoft.Tye
 {
     public abstract class Extension
     {
-        public abstract string Name { get; }
-
         public abstract Task ProcessAsync(ExtensionContext context, ExtensionConfiguration config);
     }
 }

src/Microsoft.Tye.Extensions/Dapr/DaprExtension.cs

@@ -12,8 +12,6 @@ namespace Microsoft.Tye.Extensions.Dapr
 {
     internal sealed class DaprExtension : Extension
     {
-        public override string Name => "dapr";
-
         public override Task ProcessAsync(ExtensionContext context, ExtensionConfiguration config)
         {
             // If we're getting called then the user configured dapr in their tye.yaml.

src/Microsoft.Tye.Extensions/Zipkin/ZipkinExtension.cs

@@ -12,8 +12,6 @@ namespace Microsoft.Tye.Extensions.Zipkin
 {
     internal sealed class ZipkinExtension : Extension
     {
-        public override string Name => "zipkin";
-
         public override Task ProcessAsync(ExtensionContext context, ExtensionConfiguration config)
         {
             if (context.Application.Services.Any(s => s.Name == "zipkin"))