diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index c8ad1f66064..7dfb0cd2757 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -8670,16 +8670,6 @@ namespace ts {
             }
         }
 
-        // function hasAssertionTypePredicate(signature: Signature): boolean {
-        //     const predicate = getTypePredicateOfSignature(signature);
-        //     return !!predicate && predicate.kind === TypePredicateKind.Assertion;
-        // }
-
-        // function hasBooleanTypePredicate(signature: Signature): boolean {
-        //     const predicate = getTypePredicateOfSignature(signature);
-        //     return !!predicate && (predicate.kind === TypePredicateKind.This || predicate.kind === TypePredicateKind.Identifier);
-        // }
-
         function getTypePredicateOfSignature(signature: Signature): TypePredicate | undefined {
             if (!signature.resolvedTypePredicate) {
                 if (signature.target) {
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index ba1ad79a8c2..3cdfba2aafb 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -3918,8 +3918,6 @@ namespace ts {
         resolvedSignature?: Signature;    // Cached signature of signature node or call expression
         resolvedSymbol?: Symbol;          // Cached name resolution result
         resolvedIndexInfo?: IndexInfo;    // Cached indexing info resolution result
-        //maybeTypePredicate?: boolean;     // Cached check whether call expression might reference a type predicate
-        //isAssertCall?: boolean;
         resolvedTypePredicate?: TypePredicate; // Cached type predicate for call expression
         enumMemberValue?: string | number;  // Constant value of enum member
         isVisible?: boolean;              // Is this node visible