diff --git a/lib/ClangImporter/ImportDecl.cpp b/lib/ClangImporter/ImportDecl.cpp
index 0627a8e5ed4ee..89a59dc397276 100644
--- a/lib/ClangImporter/ImportDecl.cpp
+++ b/lib/ClangImporter/ImportDecl.cpp
@@ -2544,15 +2544,6 @@ namespace {
         //    constructor available in Swift.
         ConstructorDecl *defaultCtor =
             synthesizer.createDefaultConstructor(result);
-        if (cxxRecordDecl) {
-          auto attr = AvailableAttr::createUniversallyDeprecated(
-              defaultCtor->getASTContext(),
-              "This zero-initializes the backing memory of the struct, which "
-              "is unsafe for some C++ structs. Consider adding an explicit "
-              "default initializer for this C++ struct.",
-              "");
-          defaultCtor->getAttrs().add(attr);
-        }
         ctors.push_back(defaultCtor);
       }
 
diff --git a/test/Interop/Cxx/class/inheritance/functions-module-interface.swift b/test/Interop/Cxx/class/inheritance/functions-module-interface.swift
index 4ca095c4a7a20..74a7bf2b158f5 100644
--- a/test/Interop/Cxx/class/inheritance/functions-module-interface.swift
+++ b/test/Interop/Cxx/class/inheritance/functions-module-interface.swift
@@ -136,7 +136,6 @@
 // CHECK-NEXT: public func getCopyCounter() -> UnsafeMutablePointer<Int32>
 // CHECK-NEXT: public struct CopyTrackedBaseClass {
 // CHECK-NEXT:   public init(_ x: Int32)
-// CHECK-NEXT:   @available(*, deprecated, message: "This zero-initializes the backing memory of the struct, which is unsafe for some C++ structs. Consider adding an explicit default initializer for this C++ struct.")
 // CHECK-NEXT:   @_transparent public init()
 // CHECK-NEXT:   @discardableResult
 // CHECK-NEXT:   public func getX() -> Int32
@@ -147,7 +146,6 @@
 
 // CHECK-NEXT: public struct CopyTrackedDerivedClass {
 // CHECK-NEXT:   public init(_ x: Int32)
-// CHECK-NEXT:   @available(*, deprecated, message: "This zero-initializes the backing memory of the struct, which is unsafe for some C++ structs. Consider adding an explicit default initializer for this C++ struct.")
 // CHECK-NEXT:   @_transparent public init()
 // CHECK-NEXT:   @discardableResult
 // CHECK-NEXT:   public func getDerivedX() -> Int32
@@ -167,7 +165,6 @@
 
 // CHECK-NEXT: public struct CopyTrackedDerivedDerivedClass {
 // CHECK-NEXT:   public init(_ x: Int32)
-// CHECK-NEXT:   @available(*, deprecated, message: "This zero-initializes the backing memory of the struct, which is unsafe for some C++ structs. Consider adding an explicit default initializer for this C++ struct.")
 // CHECK-NEXT:   @_transparent public init()
 // CHECK-NEXT:   @discardableResult
 // CHECK-NEXT:   public func getY() -> Int32
diff --git a/test/Interop/Cxx/objc-correctness/pthread_mutexattr_t.swift b/test/Interop/Cxx/objc-correctness/pthread_mutexattr_t.swift
index d110ef3e9e002..5f100989f5443 100644
--- a/test/Interop/Cxx/objc-correctness/pthread_mutexattr_t.swift
+++ b/test/Interop/Cxx/objc-correctness/pthread_mutexattr_t.swift
@@ -3,4 +3,4 @@
 
 import Darwin
 
-_ = pthread_mutexattr_t() // expected-warning {{'init()' is deprecated: This zero-initializes the backing memory of the struct}}
+_ = pthread_mutexattr_t()
diff --git a/test/Interop/Cxx/templates/enable-if-module-interface.swift b/test/Interop/Cxx/templates/enable-if-module-interface.swift
index e45b90305bbfd..751c840f3c0af 100644
--- a/test/Interop/Cxx/templates/enable-if-module-interface.swift
+++ b/test/Interop/Cxx/templates/enable-if-module-interface.swift
@@ -3,7 +3,6 @@
 // The `init<T>` constructor template is not yet supported in Swift.
 
 // CHECK: struct HasConstructorWithEnableIf {
-// CHECK-NEXT:  @available(*, deprecated, message: "This zero-initializes the backing memory of the struct, which is unsafe for some C++ structs. Consider adding an explicit default initializer for this C++ struct.")
 // CHECK-NEXT:  init()
 // CHECK-NEXT:}