diff --git a/lib/Sema/CodeSynthesis.cpp b/lib/Sema/CodeSynthesis.cpp
index 38d6a0d6a3b..882d5373b83 100644
--- a/lib/Sema/CodeSynthesis.cpp
+++ b/lib/Sema/CodeSynthesis.cpp
@@ -2205,9 +2205,3 @@ swift::createDesignatedInitOverride(TypeChecker &tc,
 
   return ctor;
 }
-
-void TypeChecker::addImplicitDestructor(ClassDecl *CD) {
-  auto *DD = CD->addImplicitDestructor();
-  if (DD)
-    typeCheckDecl(DD, /*isFirstPass=*/true);
-}
diff --git a/lib/Sema/TypeCheckDecl.cpp b/lib/Sema/TypeCheckDecl.cpp
index e551d917f94..2e1df7ff320 100644
--- a/lib/Sema/TypeCheckDecl.cpp
+++ b/lib/Sema/TypeCheckDecl.cpp
@@ -4618,7 +4618,7 @@ public:
     if (!IsFirstPass)
       TC.addImplicitConstructors(CD);
 
-    TC.addImplicitDestructor(CD);
+    CD->addImplicitDestructor();
 
     if (!IsFirstPass && !CD->isInvalid())
       TC.checkConformancesInContext(CD, CD);
@@ -7932,7 +7932,7 @@ static void finalizeType(TypeChecker &TC, NominalTypeDecl *nominal) {
   // class, you shouldn't have to know what the vtable layout is.
   if (auto *CD = dyn_cast<ClassDecl>(nominal)) {
     TC.addImplicitConstructors(CD);
-    TC.addImplicitDestructor(CD);
+    CD->addImplicitDestructor();
   }
 
   // validateDeclForNameLookup will not trigger an immediate full
diff --git a/lib/Sema/TypeChecker.cpp b/lib/Sema/TypeChecker.cpp
index eb3f6434b7d..3de266ca99d 100644
--- a/lib/Sema/TypeChecker.cpp
+++ b/lib/Sema/TypeChecker.cpp
@@ -69,7 +69,7 @@ void TypeChecker::handleExternalDecl(Decl *decl) {
     addImplicitStructConformances(SD);
   }
   if (auto CD = dyn_cast<ClassDecl>(decl)) {
-    addImplicitDestructor(CD);
+    CD->addImplicitDestructor();
   }
   if (auto ED = dyn_cast<EnumDecl>(decl)) {
     addImplicitEnumConformances(ED);
diff --git a/lib/Sema/TypeChecker.h b/lib/Sema/TypeChecker.h
index bf862aef732..b5d4e5b328a 100644
--- a/lib/Sema/TypeChecker.h
+++ b/lib/Sema/TypeChecker.h
@@ -1517,10 +1517,6 @@ public:
   /// struct or class.
   void addImplicitConstructors(NominalTypeDecl *typeDecl);
 
-  /// \brief Add an implicitly-defined destructor, if there is no
-  /// user-provided destructor.
-  void addImplicitDestructor(ClassDecl *CD);
-
   /// \brief Add the RawOptionSet (todo:, Equatable, and Hashable) methods to an
   /// imported NS_OPTIONS struct.
   void addImplicitStructConformances(StructDecl *ED);