Revert "Merged PR 475885: Add support for F5 for csproj and sln" (#5875)

This reverts commit 173be18.

Author: WardenGnaw

package.json

@@ -724,7 +724,6 @@
     "onDebugResolve:dotnet",
     "onLanguage:csharp",
     "onLanguage:aspnetcorerazor",
-    "onLanguage:dotnetProject",
     "onCommand:o.restart",
     "onCommand:o.pickProjectAndStart",
     "onCommand:o.showOutput",
@@ -4168,8 +4167,7 @@
         "languages": [
           "csharp",
           "razor",
-          "aspnetcorerazor",
-          "dotnetProject"
+          "aspnetcorerazor"
         ],
         "variables": {},
         "aiKey": "AIF-d9b70cd4-b9f9-4d70-929b-a071c400b217",
@@ -4787,16 +4785,6 @@
         "aliases": [
           "ASP.NET Razor"
         ]
-      },
-      {
-        "id": "dotnetProject",
-        "extensions": [
-          ".csproj",
-          ".sln"
-        ],
-        "aliases": [
-          ".NET Project"
-        ]
       }
     ],
     "grammars": [