Revert "utilsを依存関係に追加, LoggerをInject"

This reverts commit 169a6c6e0a.

app/src/main/java/one/nem/lacerta/MainActivity.java

@@ -11,8 +11,6 @@ import android.graphics.Color;
 import android.os.Bundle;
 import android.widget.Toast;
 
-import one.nem.lacerta.utils.LacertaLogger;
-
 import com.google.android.material.bottomnavigation.BottomNavigationView;
 
 
@@ -24,9 +22,6 @@ import javax.inject.Inject;
 @AndroidEntryPoint
 public class MainActivity extends AppCompatActivity {
 
-    @Inject
-    LacertaLogger logger;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);