diff --git a/ets2panda/compiler/lowering/ets/constantExpressionLowering.cpp b/ets2panda/compiler/lowering/ets/constantExpressionLowering.cpp
index 7004f13dd0c3696778471b7984ee0c5765b88956..a608172af39a37749cba8b90c69f5f64c35e8035 100644
--- a/ets2panda/compiler/lowering/ets/constantExpressionLowering.cpp
+++ b/ets2panda/compiler/lowering/ets/constantExpressionLowering.cpp
@@ -219,12 +219,6 @@ static bool IsSupportedLiteral(ir::Expression *const node)
            literal->IsStringLiteral() || literal->IsUndefinedLiteral() || literal->IsNullLiteral();
 }
 
-static bool IsStringTypeReference(ir::ETSTypeReference *type)
-{
-    auto name = type->Part()->GetIdent()->Name();
-    return name == "string" || name == "String";
-}
-
 template <typename To>
 static ir::AstNode *CommonCastNumberLiteralTo(const ir::Literal *num, ArenaAllocator *allocator)
 {
@@ -1126,48 +1120,6 @@ static ir::AstNode *FoldUnaryExpression(const ir::UnaryExpression *unary, public
     return CreateErrorIdentifier(unary, context->allocator);
 }
 
-static ir::AstNode *TryFoldTSAsExpressionForString(ir::TSAsExpression *expr)
-{
-    if (expr->Expr()->IsStringLiteral() && expr->TypeAnnotation()->IsETSTypeReference() &&
-        IsStringTypeReference(expr->TypeAnnotation()->AsETSTypeReference())) {
-        auto res = expr->Expr()->AsStringLiteral();
-        res->SetParent(expr->Parent());
-        res->SetRange(expr->Range());
-        return res;
-    }
-    return expr;
-}
-
-static ir::AstNode *FoldTSAsExpression(ir::TSAsExpression *const expr, ArenaAllocator *allocator)
-{
-    // For correct type inference, don't remove explicit type cast for array elements:
-    // [1 as int] should be inferred as int[], otherwise ([1]) it will be inferred as number[]
-    if (expr->TypeAnnotation()->IsETSPrimitiveType() && !expr->Parent()->IsArrayExpression()) {
-        auto *srcLit = expr->Expr()->AsLiteral();
-        switch (expr->TypeAnnotation()->AsETSPrimitiveType()->GetPrimitiveType()) {
-            case ir::PrimitiveType::CHAR:
-                return CreateCharLiteral(CastValTo<char16_t>(srcLit), expr->Parent(), expr->Range(), allocator);
-            case ir::PrimitiveType::BOOLEAN:
-                return CreateBooleanLiteral(CastValTo<bool>(srcLit), expr->Parent(), expr->Range(), allocator);
-            case ir::PrimitiveType::BYTE:
-                return CreateNumberLiteral(CastValTo<int8_t>(srcLit), expr->Parent(), expr->Range(), allocator);
-            case ir::PrimitiveType::SHORT:
-                return CreateNumberLiteral(CastValTo<int16_t>(srcLit), expr->Parent(), expr->Range(), allocator);
-            case ir::PrimitiveType::INT:
-                return CreateNumberLiteral(CastValTo<int32_t>(srcLit), expr->Parent(), expr->Range(), allocator);
-            case ir::PrimitiveType::LONG:
-                return CreateNumberLiteral(CastValTo<int64_t>(srcLit), expr->Parent(), expr->Range(), allocator);
-            case ir::PrimitiveType::FLOAT:
-                return CreateNumberLiteral(CastValTo<float>(srcLit), expr->Parent(), expr->Range(), allocator);
-            case ir::PrimitiveType::DOUBLE:
-                return CreateNumberLiteral(CastValTo<double>(srcLit), expr->Parent(), expr->Range(), allocator);
-            default:
-                ES2PANDA_UNREACHABLE();
-        }
-    }
-    return TryFoldTSAsExpressionForString(expr);
-}
-
 static ir::AstNode *FoldTemplateLiteral(ir::TemplateLiteral *expr, ArenaAllocator *allocator)
 {
     auto litToString = [allocator](const ir::Literal *lit) {
@@ -1398,12 +1350,6 @@ ir::AstNode *ConstantExpressionLowering::Fold(ir::AstNode *constantNode)
             }
             return FoldTemplateLiteral(tmpLiteral, context_->allocator);
         }
-        if (node->IsTSAsExpression()) {
-            auto tsAsExpr = node->AsTSAsExpression();
-            if (IsSupportedLiteral(tsAsExpr->Expr())) {
-                return FoldTSAsExpression(tsAsExpr, context_->allocator);
-            }
-        }
         if (node->IsUnaryExpression()) {
             auto unaryOp = node->AsUnaryExpression();
             if (IsSupportedLiteral(unaryOp->Argument())) {