diff --git a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DataFlowInfo.java b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DataFlowInfo.java
index 2015345d589..261d3db669d 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DataFlowInfo.java
+++ b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DataFlowInfo.java
@@ -40,16 +40,9 @@ public interface DataFlowInfo {
     @NotNull
     Nullability getNullability(@NotNull DataFlowValue key);
 
-    /**
-     * Gets a set of all possible types for this value, INCLUDING the original (native) type
-     */
-    @NotNull
-    Set<JetType> getPossibleTypes(@NotNull DataFlowValue key, boolean withOriginalType);
-
     /**
      * IMPORTANT: by default, the original (native) type for this value
      * are NOT included. So it's quite possible to get an empty set here.
-     * If you need also the original type, use getPossibleTypes(key, true)
      */
     @NotNull
     Set<JetType> getPossibleTypes(@NotNull DataFlowValue key);
diff --git a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DelegatingDataFlowInfo.java b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DelegatingDataFlowInfo.java
index fddf2ef8e3d..3391f074823 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DelegatingDataFlowInfo.java
+++ b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DelegatingDataFlowInfo.java
@@ -131,17 +131,8 @@ import static org.jetbrains.kotlin.resolve.calls.smartcasts.Nullability.NOT_NULL
     @Override
     @NotNull
     public Set<JetType> getPossibleTypes(@NotNull DataFlowValue key) {
-        return getPossibleTypes(key, false);
-    }
-
-    @Override
-    @NotNull
-    public Set<JetType> getPossibleTypes(@NotNull DataFlowValue key, boolean withOriginalType) {
         JetType originalType = key.getType();
         Set<JetType> types = collectTypesFromMeAndParents(key);
-        if (withOriginalType) {
-            types.add(originalType);
-        }
         if (getNullability(key).canBeNull()) {
             return types;
         }