Remove unused imports

Change-Id: I70a800f35cd8b5b61ea196cd6402815b9085012f
diff --git a/src/main/java/com/android/tools/r8/diagnostic/internal/MissingFieldInfoImpl.java b/src/main/java/com/android/tools/r8/diagnostic/internal/MissingFieldInfoImpl.java
index cddb905..679158d 100644
--- a/src/main/java/com/android/tools/r8/diagnostic/internal/MissingFieldInfoImpl.java
+++ b/src/main/java/com/android/tools/r8/diagnostic/internal/MissingFieldInfoImpl.java
@@ -7,7 +7,6 @@
 import com.android.tools.r8.diagnostic.DefinitionContext;
 import com.android.tools.r8.diagnostic.MissingDefinitionInfo;
 import com.android.tools.r8.diagnostic.MissingFieldInfo;
-import com.android.tools.r8.diagnostic.internal.MissingClassInfoImpl.Builder;
 import com.android.tools.r8.references.FieldReference;
 import java.util.Collection;
 
diff --git a/src/main/java/com/android/tools/r8/diagnostic/internal/MissingMethodInfoImpl.java b/src/main/java/com/android/tools/r8/diagnostic/internal/MissingMethodInfoImpl.java
index 2cf6ae0..39f7e20 100644
--- a/src/main/java/com/android/tools/r8/diagnostic/internal/MissingMethodInfoImpl.java
+++ b/src/main/java/com/android/tools/r8/diagnostic/internal/MissingMethodInfoImpl.java
@@ -7,7 +7,6 @@
 import com.android.tools.r8.diagnostic.DefinitionContext;
 import com.android.tools.r8.diagnostic.MissingDefinitionInfo;
 import com.android.tools.r8.diagnostic.MissingMethodInfo;
-import com.android.tools.r8.diagnostic.internal.MissingClassInfoImpl.Builder;
 import com.android.tools.r8.references.MethodReference;
 import java.util.Collection;