Remove package guids from client-side Blazor templates (#11707)

Author: danroth27

src/Components/Blazor/Templates/src/content/BlazorHosted-CSharp/.template.config.src/vs-2017.3.host.json

@@ -2,7 +2,6 @@
   "$schema": "http://json.schemastore.org/vs-2017.3.host",
   "name": {
     "text": "Blazor (ASP.NET Core hosted)",
-    "package": "{0CD94836-1526-4E85-87D3-FB5274C5AFC9}",
     "id": "1050"
   },
   "description": {

src/Components/Blazor/Templates/src/content/BlazorStandalone-CSharp/.template.config.src/vs-2017.3.host.json

@@ -2,7 +2,6 @@
   "$schema": "http://json.schemastore.org/vs-2017.3.host",
   "name": {
     "text": "Blazor (client-side)",
-    "package": "{0CD94836-1526-4E85-87D3-FB5274C5AFC9}",
     "id": "1050"
   },
   "description": {