diff --git a/include/swift/AST/ASTContext.h b/include/swift/AST/ASTContext.h
index 0879139474e..ddb53ceee39 100644
--- a/include/swift/AST/ASTContext.h
+++ b/include/swift/AST/ASTContext.h
@@ -742,9 +742,6 @@ public:
   FuncDecl *getMakeInvocationEncoderOnDistributedActorSystem(
       AbstractFunctionDecl *thunk) const;
 
-  /// Indicates whether move-only / noncopyable types are supported.
-  bool supportsMoveOnlyTypes() const;
-
   // Retrieve the declaration of
   // DistributedInvocationEncoder.recordGenericSubstitution(_:).
   //
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index bfc0114735a..05e7ffa651a 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -6529,8 +6529,3 @@ Type ASTContext::getNamedSwiftType(ModuleDecl *module, StringRef name) {
     return nominalDecl->getDeclaredType();
   return decl->getDeclaredInterfaceType();
 }
-
-bool ASTContext::supportsMoveOnlyTypes() const {
-  // currently the only thing holding back whether the types can appear is this.
-  return true;
-}
diff --git a/lib/SILOptimizer/Mandatory/ConsumeOperatorCopyableAddressesChecker.cpp b/lib/SILOptimizer/Mandatory/ConsumeOperatorCopyableAddressesChecker.cpp
index 180e929ec60..858f2d17c5a 100644
--- a/lib/SILOptimizer/Mandatory/ConsumeOperatorCopyableAddressesChecker.cpp
+++ b/lib/SILOptimizer/Mandatory/ConsumeOperatorCopyableAddressesChecker.cpp
@@ -2463,10 +2463,6 @@ class ConsumeOperatorCopyableAddressesCheckerPass
     auto *fn = getFunction();
     auto &astContext = fn->getASTContext();
 
-    // Only run this pass if the move only language feature is enabled.
-    if (!astContext.supportsMoveOnlyTypes())
-      return;
-
     // Don't rerun diagnostics on deserialized functions.
     if (getFunction()->wasDeserializedCanonical())
       return;
diff --git a/lib/SILOptimizer/Mandatory/ConsumeOperatorCopyableValuesChecker.cpp b/lib/SILOptimizer/Mandatory/ConsumeOperatorCopyableValuesChecker.cpp
index 4d2d115c216..1bea3833d19 100644
--- a/lib/SILOptimizer/Mandatory/ConsumeOperatorCopyableValuesChecker.cpp
+++ b/lib/SILOptimizer/Mandatory/ConsumeOperatorCopyableValuesChecker.cpp
@@ -553,10 +553,6 @@ class ConsumeOperatorCopyableValuesCheckerPass : public SILFunctionTransform {
   void run() override {
     auto *fn = getFunction();
 
-    // Only run this pass if the move only language feature is enabled.
-    if (!fn->getASTContext().supportsMoveOnlyTypes())
-      return;
-
     // Don't rerun diagnostics on deserialized functions.
     if (fn->wasDeserializedCanonical())
       return;
diff --git a/lib/SILOptimizer/Mandatory/MoveOnlyAddressCheckerTester.cpp b/lib/SILOptimizer/Mandatory/MoveOnlyAddressCheckerTester.cpp
index 334397919f3..ab75794bab6 100644
--- a/lib/SILOptimizer/Mandatory/MoveOnlyAddressCheckerTester.cpp
+++ b/lib/SILOptimizer/Mandatory/MoveOnlyAddressCheckerTester.cpp
@@ -78,10 +78,6 @@ class MoveOnlyAddressCheckerTesterPass : public SILFunctionTransform {
   void run() override {
     auto *fn = getFunction();
 
-    // Only run this pass if the move only language feature is enabled.
-    if (!fn->getASTContext().supportsMoveOnlyTypes())
-      return;
-
     // Don't rerun diagnostics on deserialized functions.
     if (getFunction()->wasDeserializedCanonical())
       return;
diff --git a/lib/SILOptimizer/Mandatory/MoveOnlyBorrowToDestructureTester.cpp b/lib/SILOptimizer/Mandatory/MoveOnlyBorrowToDestructureTester.cpp
index 983d016f8d5..b667dbba771 100644
--- a/lib/SILOptimizer/Mandatory/MoveOnlyBorrowToDestructureTester.cpp
+++ b/lib/SILOptimizer/Mandatory/MoveOnlyBorrowToDestructureTester.cpp
@@ -71,10 +71,6 @@ class MoveOnlyBorrowToDestructureTransformPass : public SILFunctionTransform {
   void run() override {
     auto *fn = getFunction();
 
-    // Only run this pass if the move only language feature is enabled.
-    if (!fn->getASTContext().supportsMoveOnlyTypes())
-      return;
-
     // Don't rerun diagnostics on deserialized functions.
     if (getFunction()->wasDeserializedCanonical())
       return;
diff --git a/lib/SILOptimizer/Mandatory/MoveOnlyChecker.cpp b/lib/SILOptimizer/Mandatory/MoveOnlyChecker.cpp
index 7b1847c2d4e..eec43b8f309 100644
--- a/lib/SILOptimizer/Mandatory/MoveOnlyChecker.cpp
+++ b/lib/SILOptimizer/Mandatory/MoveOnlyChecker.cpp
@@ -215,10 +215,6 @@ class MoveOnlyCheckerPass : public SILFunctionTransform {
   void run() override {
     auto *fn = getFunction();
 
-    // Only run this pass if the move only language feature is enabled.
-    if (!fn->getASTContext().supportsMoveOnlyTypes())
-      return;
-
     // Don't rerun diagnostics on deserialized functions.
     if (getFunction()->wasDeserializedCanonical())
       return;
diff --git a/lib/SILOptimizer/Mandatory/MoveOnlyObjectCheckerTester.cpp b/lib/SILOptimizer/Mandatory/MoveOnlyObjectCheckerTester.cpp
index 9cb4fb0ba29..b90ce72d565 100644
--- a/lib/SILOptimizer/Mandatory/MoveOnlyObjectCheckerTester.cpp
+++ b/lib/SILOptimizer/Mandatory/MoveOnlyObjectCheckerTester.cpp
@@ -75,10 +75,6 @@ class MoveOnlyObjectCheckerTesterPass : public SILFunctionTransform {
   void run() override {
     auto *fn = getFunction();
 
-    // Only run this pass if the move only language feature is enabled.
-    if (!fn->getASTContext().supportsMoveOnlyTypes())
-      return;
-
     // Don't rerun diagnostics on deserialized functions.
     if (getFunction()->wasDeserializedCanonical())
       return;
diff --git a/lib/SILOptimizer/Mandatory/MoveOnlyTempAllocationFromLetTester.cpp b/lib/SILOptimizer/Mandatory/MoveOnlyTempAllocationFromLetTester.cpp
index 8a172825a42..f51ad322f5e 100644
--- a/lib/SILOptimizer/Mandatory/MoveOnlyTempAllocationFromLetTester.cpp
+++ b/lib/SILOptimizer/Mandatory/MoveOnlyTempAllocationFromLetTester.cpp
@@ -34,10 +34,6 @@ struct MoveOnlyTempAllocationFromLetTester : SILFunctionTransform {
   void run() override {
     auto *fn = getFunction();
 
-    // Only run this pass if the move only language feature is enabled.
-    if (!fn->getASTContext().supportsMoveOnlyTypes())
-      return;
-
     // Don't rerun diagnostics on deserialized functions.
     if (getFunction()->wasDeserializedCanonical())
       return;