Fix missing override in ProgramDefinition

Change-Id: I32bf0178c0b28739b5b9a8ca459ab1dc28167379

src/main/java/com/android/tools/r8/graph/ProgramDefinition.java

diff --git a/src/main/java/com/android/tools/r8/graph/ProgramDefinition.java b/src/main/java/com/android/tools/r8/graph/ProgramDefinition.java
index 7310270..17e779e 100644
--- a/src/main/java/com/android/tools/r8/graph/ProgramDefinition.java
+++ b/src/main/java/com/android/tools/r8/graph/ProgramDefinition.java
@@ -4,7 +4,6 @@
 
 package com.android.tools.r8.graph;
 
-import com.android.tools.r8.origin.Origin;
 import java.util.function.Function;
 
 public interface ProgramDefinition extends Definition, ProgramDerivedContext {
@@ -28,8 +27,6 @@
 
   DexDefinition getDefinition();
 
-  Origin getOrigin();
-
   default boolean isProgramClass() {
     return false;
   }