Removed unit test task from Visual Studio Codium build because it doesn't exist yet

.vscode/tasks.json

@@ -22,24 +22,6 @@
       },
       "problemMatcher": "$msCompile"
     },
-    {
-      "label": "Test",
-      //"dependsOn": [ "Run" ],
-      "group": {
-        "kind": "build",
-        "isDefault": true
-      },
-      "type": "shell",
-      "command": "dotnet",
-      "args": [
-        "test",
-        "${workspaceFolder}/Nuclex.Avalonia.DependencyInjection.Tests (netstandard-2.0).csproj",
-      ],
-      "options": {
-        "cwd": "${workspaceFolder}"
-      },
-      "problemMatcher": "$msCompile"
-    },
     {
       "label": "Publish",
       //"dependsOn": [ "Install" ],