[IR] Remove files parameter from IrModuleFragmentImpl

This commit removes the default parameter in constructor,
as well as custom logic in this class, which would
make it harder for its subsequent auto-generation.

^KT-65773 In Progress

compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/lower/serialization/ir/JsLazyIrModuleDeserializer.kt

@@ -78,7 +78,7 @@ class JsLazyIrModuleDeserializer(
     }
 
 
-    override val moduleFragment: IrModuleFragment = IrModuleFragmentImpl(moduleDescriptor, builtIns, emptyList())
+    override val moduleFragment: IrModuleFragment = IrModuleFragmentImpl(moduleDescriptor, builtIns)
     override val moduleDependencies: Collection<IrModuleDeserializer> = dependencies
 
     override val kind get() = IrModuleDeserializerKind.SYNTHETIC