json edit: Ignore removes in a non existing node (#210025)

src/vs/base/common/jsonEdit.ts

@@ -35,7 +35,7 @@ export function setProperty(text: string, originalPath: JSONPath, value: any, fo
 	if (!parent) {
 		// empty document
 		if (value === undefined) { // delete
-			throw new Error('Can not delete in empty document');
+			return []; // property does not exist, nothing to do
 		}
 		return withFormatting(text, { offset: root ? root.offset : 0, length: root ? root.length : 0, content: JSON.stringify(value) }, formattingOptions);
 	} else if (parent.type === 'object' && typeof lastSegment === 'string' && Array.isArray(parent.children)) {