diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/ScriptCodegen.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/ScriptCodegen.kt
index d228bc23e47..c5e25dc11aa 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/ScriptCodegen.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/ScriptCodegen.kt
@@ -77,8 +77,6 @@ class ScriptCodegen private constructor(
             classBuilder: ClassBuilder,
             methodContext: MethodContext
     ) {
-        val scriptDefinition = scriptContext.script.kotlinScriptDefinition
-
         val jvmSignature = typeMapper.mapScriptSignature(
             scriptDescriptor,
             scriptContext.earlierScripts
diff --git a/compiler/frontend.script/src/org/jetbrains/kotlin/script/ScriptHelperImpl.kt b/compiler/frontend.script/src/org/jetbrains/kotlin/script/ScriptHelperImpl.kt
deleted file mode 100644
index 3b311453818..00000000000
--- a/compiler/frontend.script/src/org/jetbrains/kotlin/script/ScriptHelperImpl.kt
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright 2010-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.script
-
-import org.jetbrains.kotlin.descriptors.ScriptDescriptor
-import kotlin.reflect.KClass
-
-class ScriptHelperImpl : ScriptHelper {
-    override fun getScriptParameters(kotlinScriptDefinition: KotlinScriptDefinition, scriptDefinition: ScriptDescriptor) =
-            kotlinScriptDefinition.getScriptParameters(scriptDefinition)
-
-    override fun getKotlinType(scriptDescriptor: ScriptDescriptor, kClass: KClass<out Any>) =
-            getKotlinTypeByKClass(scriptDescriptor, kClass)
-}
\ No newline at end of file
diff --git a/compiler/frontend.script/src/org/jetbrains/kotlin/script/scriptTypeUtil.kt b/compiler/frontend.script/src/org/jetbrains/kotlin/script/scriptTypeUtil.kt
index 849e88403da..76ceebfc944 100644
--- a/compiler/frontend.script/src/org/jetbrains/kotlin/script/scriptTypeUtil.kt
+++ b/compiler/frontend.script/src/org/jetbrains/kotlin/script/scriptTypeUtil.kt
@@ -20,7 +20,6 @@ import org.jetbrains.kotlin.descriptors.NotFoundClasses
 import org.jetbrains.kotlin.descriptors.ScriptDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.Annotations
 import org.jetbrains.kotlin.descriptors.findNonGenericClassAcrossDependencies
-import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.descriptorUtil.module
 import org.jetbrains.kotlin.resolve.lazy.descriptors.script.classId
 import org.jetbrains.kotlin.storage.LockBasedStorageManager
@@ -29,12 +28,6 @@ import kotlin.reflect.KClass
 import kotlin.reflect.KType
 import kotlin.reflect.KTypeProjection
 import kotlin.reflect.KVariance
-import kotlin.reflect.full.primaryConstructor
-
-fun KotlinScriptDefinition.getScriptParameters(scriptDescriptor: ScriptDescriptor): List<ScriptParameter> =
-    template.primaryConstructor?.parameters
-        ?.map { ScriptParameter(Name.identifier(it.name!!), getKotlinTypeByKType(scriptDescriptor, it.type)) }
-            ?: emptyList()
 
 fun getKotlinTypeByKClass(scriptDescriptor: ScriptDescriptor, kClass: KClass<out Any>): KotlinType =
     scriptDescriptor.module.findNonGenericClassAcrossDependencies(
diff --git a/compiler/psi/src/org/jetbrains/kotlin/script/ScriptHelper.kt b/compiler/psi/src/org/jetbrains/kotlin/script/ScriptHelper.kt
deleted file mode 100644
index c9f592126f5..00000000000
--- a/compiler/psi/src/org/jetbrains/kotlin/script/ScriptHelper.kt
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright 2010-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.script
-
-import org.jetbrains.kotlin.descriptors.ScriptDescriptor
-import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.types.KotlinType
-import java.util.*
-import kotlin.reflect.KClass
-
-data class ScriptParameter(val name: Name, val type: KotlinType)
-
-interface ScriptHelper {
-    fun getScriptParameters(kotlinScriptDefinition: KotlinScriptDefinition, scriptDefinition: ScriptDescriptor): List<ScriptParameter>
-    fun getKotlinType(scriptDescriptor: ScriptDescriptor, kClass: KClass<out Any>): KotlinType
-
-    companion object {
-        private val scriptHelperInstance: ScriptHelper =
-            ServiceLoader.load(ScriptHelper::class.java, ScriptHelper::class.java.classLoader).firstOrNull()
-                    ?: error("ScriptHelper implementation is not found")
-
-        fun getInstance(): ScriptHelper = scriptHelperInstance
-    }
-}