remove c# devkit reference

Author: MishaProductions

src/coreclrDebug/activate.ts

@@ -224,18 +224,12 @@ function showInstallErrorMessage(eventStream: EventStream) {
 function showDotnetToolsWarning(message: string): void {
     const config = vscode.workspace.getConfiguration('csharp');
     if (!config.get('suppressDotnetInstallWarning', false)) {
-        const getDotNetMessage: ActionOption | Command =
-            getCSharpDevKit() !== undefined
-                ? {
-                      title: vscode.l10n.t('Get the SDK'),
-                      command: 'csdevkit.installDotnetSdk',
-                  }
-                : {
-                      title: vscode.l10n.t('Get the SDK'),
-                      action: async () => {
-                          await vscode.env.openExternal(vscode.Uri.parse('https://dot.net/core-sdk-vscode'));
-                      },
-                  };
+        const getDotNetMessage: ActionOption | Command = {
+            title: vscode.l10n.t('Get the SDK'),
+            action: async () => {
+                await vscode.env.openExternal(vscode.Uri.parse('https://dot.net/core-sdk-vscode'));
+            },
+        };
         const goToSettingsMessage: ActionOption = {
             title: vscode.l10n.t('Disable message in settings'),
             action: async () => {