Revert serializable classes

Although we may want to do this in the future, we first want to figure out
how this relates to our versioning policy and whether we want to do custom
serialization.

Author: oschwald

src/main/java/com/maxmind/geoip2/model/AbstractCountryResponse.java

@@ -1,5 +1,7 @@
 package com.maxmind.geoip2.model;
 
+import java.io.IOException;
+
 import com.fasterxml.jackson.annotation.JsonInclude.Include;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -9,10 +11,7 @@
 import com.maxmind.geoip2.record.RepresentedCountry;
 import com.maxmind.geoip2.record.Traits;
 
-import java.io.IOException;
-import java.io.Serializable;
-
-abstract class AbstractCountryResponse implements Serializable {
+abstract class AbstractCountryResponse {
     @JsonProperty
     private Continent continent = new Continent();
 

src/main/java/com/maxmind/geoip2/record/AbstractNamedRecord.java

@@ -1,18 +1,17 @@
 package com.maxmind.geoip2.record;
 
-import com.fasterxml.jackson.annotation.JacksonInject;
-import com.fasterxml.jackson.annotation.JsonProperty;
-
-import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import com.fasterxml.jackson.annotation.JacksonInject;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
 /**
  * Abstract class for records with name maps.
  */
-public abstract class AbstractNamedRecord implements Serializable {
+public abstract class AbstractNamedRecord {
     @JsonProperty
     private HashMap<String, String> names = new HashMap<String, String>();
     @JsonProperty("geoname_id")

src/main/java/com/maxmind/geoip2/record/Location.java

@@ -2,14 +2,12 @@
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 
-import java.io.Serializable;
-
 /**
  * Contains data for the location record associated with an IP address.
  *
  * This record is returned by all the end points except the Country end point.
  */
-final public class Location implements Serializable {
+final public class Location {
     @JsonProperty("accuracy_radius")
     private Integer accuracyRadius;
 

src/main/java/com/maxmind/geoip2/record/MaxMind.java

@@ -2,14 +2,12 @@
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 
-import java.io.Serializable;
-
 /**
  * Contains data related to your MaxMind account.
  *
  * This record is returned by all the end points.
  */
-final public class MaxMind implements Serializable {
+final public class MaxMind {
     @JsonProperty("queries_remaining")
     private Integer queriesRemaining;
 

src/main/java/com/maxmind/geoip2/record/Postal.java

@@ -5,14 +5,12 @@
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 
-import java.io.Serializable;
-
 /**
  * Contains data for the postal record associated with an IP address.
  *
  * This record is returned by all the end points except the Country end point.
  */
-final public class Postal implements Serializable {
+final public class Postal {
     @JsonProperty
     private String code;
 

src/main/java/com/maxmind/geoip2/record/Traits.java

@@ -2,14 +2,12 @@
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 
-import java.io.Serializable;
-
 /**
  * Contains data for the traits record associated with an IP address.
  *
  * This record is returned by all the end points.
  */
-final public class Traits implements Serializable {
+final public class Traits {
     @JsonProperty("autonomous_system_number")
     private Integer autonomousSystemNumber;