remove unnecessary annotation

Author: wreulicke

spar-wings-awscli-config/src/main/java/jp/xet/sparwings/aws/auth/AwsCliProfile.java

@@ -19,18 +19,15 @@
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 
-import org.apache.http.annotation.Immutable;
-
 import com.amazonaws.auth.AWSCredentialsProvider;
 
 /**
  * TODO for daisuke
- * 
+ *
  * @since 0.10
  * @version $Id$
  * @author daisuke
  */
-@Immutable
 @RequiredArgsConstructor
 @EqualsAndHashCode
 public class AwsCliProfile {