diff --git a/src/compiler/core.ts b/src/compiler/core.ts
index 72c09e490c3..89057dd2939 100644
--- a/src/compiler/core.ts
+++ b/src/compiler/core.ts
@@ -568,8 +568,6 @@ namespace ts {
      * is created if `value` was appended.
      * @param value The value to append to the array. If `value` is `undefined`, nothing is
      * appended.
-     * @param copyOnWrite Indicates whether to return a fresh array rather than modify the
-     * existing array.
      */
     export function append<T>(to: T[] | undefined, value: T | undefined): T[] | undefined {
         if (value === undefined) return to;
diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index ff619f07020..f3b98794762 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -883,19 +883,6 @@ namespace ts {
         return false;
     }
 
-    export function getAllLabeledStatements(node: LabeledStatement): { statement: Statement; labeledStatements: LabeledStatement[]; } {
-        switch (node.statement.kind) {
-            case SyntaxKind.LabeledStatement:
-                const result = getAllLabeledStatements(<LabeledStatement>node.statement);
-                if (result) {
-                    result.labeledStatements.push(node);
-                }
-                return result;
-            default:
-                return { statement: <IterationStatement>node.statement, labeledStatements: [node] };
-        }
-    }
-
     export function isFunctionBlock(node: Node) {
         return node && node.kind === SyntaxKind.Block && isFunctionLike(node.parent);
     }