diff --git a/utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java b/utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java
index 8de3a97b..f49da584 100644
--- a/utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java
+++ b/utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java
@@ -1,7 +1,5 @@
 package one.nem.lacerta.utils;
 
-import one.nem.lacerta.utils.model.KeyValueLog;
-
 public interface LacertaLogger {
 
     void info(String tag, String message);
@@ -11,7 +9,4 @@ public interface LacertaLogger {
     void trace(String tag, String message);
     void fatal(String tag, String message);
 
-    String buildMessageByObject(KeyValueLog... logs);
-    // With name
-    String buildMessageByObject(String name, KeyValueLog... logs);
 }
diff --git a/utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java b/utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java
index aedf1f0f..aba337d8 100644
--- a/utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java
+++ b/utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java
@@ -5,8 +5,6 @@ import android.util.Log;
 import javax.inject.Inject;
 
 import one.nem.lacerta.utils.LacertaLogger;
-import one.nem.lacerta.utils.model.KeyValueLog;
-
 public class LacertaLoggerImpl implements LacertaLogger{
 
     @Inject
@@ -42,30 +40,4 @@ public class LacertaLoggerImpl implements LacertaLogger{
     public void fatal(String tag, String message) {
         Log.wtf(tag, message);
     }
-
-    @Override
-    public String buildMessageByObject(KeyValueLog... logs) {
-        StringBuilder builder = new StringBuilder();
-        for (KeyValueLog log : logs) {
-            builder.append(log.getKey());
-            builder.append(": ");
-            builder.append(log.getValue());
-            builder.append("\n");
-        }
-        return builder.toString();
-    }
-
-    @Override
-    public String buildMessageByObject(String name, KeyValueLog... logs) {
-        StringBuilder builder = new StringBuilder();
-        builder.append(name);
-        builder.append("\n");
-        for (KeyValueLog log : logs) {
-            builder.append(log.getKey());
-            builder.append(": ");
-            builder.append(log.getValue());
-            builder.append("\n");
-        }
-        return builder.toString();
-    }
 }