Remove check if both extensions are installed

The new pre-releases extensions function only allows one
extension to be installed at a time.

src/extension.ts

@@ -28,7 +28,7 @@ import { ShowReferencesFeature } from './features/showReferences';
 import { CustomSemanticTokens } from './features/semanticTokens';
 import { ModuleProvidersFeature } from './features/moduleProviders';
 import { ModuleCallsFeature } from './features/moduleCalls';
-import { getInitializationOptions, migrateLegacySettings, previewExtensionPresent } from './settings';
+import { getInitializationOptions, migrateLegacySettings } from './settings';
 import { TerraformLSCommands } from './commands/terraformls';
 import { TerraformCommands } from './commands/terraform';
 import { TerraformVersionFeature } from './features/terraformVersion';
@@ -51,11 +51,6 @@ export async function activate(context: vscode.ExtensionContext): Promise<void>
   reporter = new TelemetryReporter(context.extension.id, manifest.version, manifest.appInsightsKey);
   context.subscriptions.push(reporter);
 
-  if (previewExtensionPresent(context.extension.id)) {
-    reporter.sendTelemetryEvent('previewExtensionPresentWithStable');
-    return undefined;
-  }
-
   await migrateLegacySettings(context);
 
   // always register commands needed to control terraform-ls

src/settings.ts

@@ -157,24 +157,3 @@ export async function migrateLegacySettings(ctx: vscode.ExtensionContext) {
   await deleteSetting('terraform-ls', 'experimentalFeatures');
   await vscode.commands.executeCommand('workbench.action.reloadWindow');
 }
-
-export function previewExtensionPresent(currentExtensionID: string) {
-  const stable = vscode.extensions.getExtension('hashicorp.terraform');
-  const preview = vscode.extensions.getExtension('hashicorp.terraform-preview');
-
-  const msg = 'Please ensure only one is enabled or installed and reload this window';
-
-  if (currentExtensionID === 'hashicorp.terraform-preview') {
-    if (stable !== undefined) {
-      vscode.window.showErrorMessage('Terraform Preview cannot be used while Terraform Stable is also enabled.' + msg);
-      return true;
-    }
-  } else if (currentExtensionID === 'hashicorp.terraform') {
-    if (preview !== undefined) {
-      vscode.window.showErrorMessage('Terraform Stable cannot be used while Terraform Preview is also enabled.' + msg);
-      return true;
-    }
-  }
-
-  return false;
-}