Remove code-workspaces, since ionide doesn't officially support it (#13154)

* Remove code-workspaces, since ionide doesn't officially support it

* Set default solution to FCS

.vscode/settings.json

@@ -17,8 +17,9 @@
     },
     "FSharp.suggestGitignore": false,
     "FSharp.enableMSBuildProjectGraph": true,
-    "FSharp.workspacePath": "FSharp.sln",
-    "FSharp.workspaceModePeekDeepLevel": 1,
+    "FSharp.workspacePath": "service/FSharp.Compiler.Service.sln",
+    "FSharp.workspaceModePeekDeepLevel": 2,
+    "FSharp.enableBackgroundServices": false,
     "FSharp.excludeProjectDirectories": [
         ".git",
         "eng",
@@ -33,9 +34,13 @@
     "csharp.suppressDotnetInstallWarning": true,
     "csharp.suppressDotnetRestoreNotification": true,
     "csharp.suppressHiddenDiagnostics": true,
-    "omnisharp.autoStart": true,
+    "omnisharp.autoStart": false,
+    "omnisharp.defaultLaunchSolution": "service/FSharp.Compiler.Service.sln",
     "omnisharp.enableMsBuildLoadProjectsOnDemand": true,
     "omnisharp.disableMSBuildDiagnosticWarning": true,
+    "omnisharp.enableRoslynAnalyzers": false,
+    "omnisharp.analyzeOpenDocumentsOnly": true,
+    "omnisharp.useModernNet": true,
     "razor.disabled": true,
     "powershell.promptToUpdatePowerShell": false,
     "powershell.integratedConsole.showOnStartup": false,

fsharp.code-workspace

-{
-	"folders": [
-		{
-			"path": "."
-		},
-		{
-			"name": "Artifacts (artifacts)",
-			"path": "artifacts"
-		},
-		{
-			"name": "Documentation (docs)",
-			"path": "docs"
-		},
-		{
-			"name": "Engineering (eng)",
-			"path": "eng"
-		},
-		{
-			"name": "Source (src)",
-			"path": "src"
-		},
-		{
-			"name": "Tests (tests)",
-			"path": "tests"
-		},
-		{
-			"name": "Visual Studio (vsintegration)",
-			"path": "vsintegration"
-		}
-	]
-}
\ No newline at end of file