Revert ":lipstick:"

This reverts commit 0d5d8ee.

Author: jeanp413

src/common/telemetry.ts

@@ -134,12 +134,11 @@ export function commonSendErrorData(logService: ILogService, defaultGitpodHost:
 	delete properties['userId'];
 
 	// make sure all properties are strings
-	properties = cloneAndChange(properties, value => {
-		if (typeof value !== 'string') {
-			return JSON.stringify(value);
+	for (const key in properties) {
+		if (typeof properties[key] !== 'string') {
+			properties[key] = JSON.stringify(properties[key]);
 		}
-		return value;
-	});
+	}
 
 	const jsonData = {
 		component: 'vscode-desktop-extension',