[IR] Drop irProviders from stub generator

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/DeclarationStubGenerator.kt

@@ -53,12 +53,6 @@ class DeclarationStubGenerator(
             lazyTable.stubGenerator = if (value) this else null
         }
 
-    private lateinit var irProviders_: List<IrProvider>
-
-    fun setIrProviders(value: List<IrProvider>) {
-        irProviders_ = value
-    }
-
     val typeTranslator =
         TypeTranslator(
             lazyTable,

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/ExternalDependenciesGenerator.kt

@@ -77,7 +77,5 @@ fun generateTypicalIrProviderList(
     val stubGenerator = DeclarationStubGenerator(
         moduleDescriptor, symbolTable, irBuiltins.languageVersionSettings, extensions
     )
-    return listOfNotNull(deserializer, stubGenerator).also {
-        stubGenerator.setIrProviders(it)
-    }
+    return listOfNotNull(deserializer, stubGenerator)
 }