GH-230 removing unused cloudevent serializer and deserializer and hence dependency (#231)

* removing unwanted/unneeded/unused cloudevent serializer and deserializer and hence dependency 
* It was introduced here #126 
  * not sure why
  * reminder: ISO Date formatting is coming for free in Jackson when using `@JsonFormat`
  
* we still have this #16 pending
* but for now I propose we remove this annoying dependency

Author: francoisledroff

core/pom.xml

@@ -71,10 +71,6 @@
       <groupId>io.openapitools.jackson.dataformat</groupId>
       <artifactId>jackson-dataformat-hal</artifactId>
     </dependency>
-    <dependency>
-      <groupId>io.cloudevents</groupId>
-      <artifactId>cloudevents-api</artifactId>
-    </dependency>
 
     <dependency>
        <groupId>org.junit.jupiter</groupId>

core/src/main/java/com/adobe/aio/util/JacksonUtil.java

@@ -17,13 +17,9 @@
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.json.JsonMapper;
-import com.fasterxml.jackson.databind.module.SimpleModule;
 import com.fasterxml.jackson.databind.node.TextNode;
 import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
-import io.cloudevents.json.ZonedDateTimeDeserializer;
-import io.cloudevents.json.ZonedDateTimeSerializer;
 import io.openapitools.jackson.dataformat.hal.JacksonHALModule;
-import java.time.ZonedDateTime;
 import org.apache.commons.lang3.StringUtils;
 
 public class JacksonUtil {
@@ -35,10 +31,6 @@ private JacksonUtil() {
       JsonMapper.builder()
           .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
           .serializationInclusion(Include.NON_NULL)
-          .addModule(new SimpleModule()
-              .addSerializer(ZonedDateTime.class, new ZonedDateTimeSerializer())
-              .addDeserializer(ZonedDateTime.class, new ZonedDateTimeDeserializer()))
-           // let's stick to CloudEvents v1 ISO_OFFSET_DATE_TIME date format
           .addModule(new JacksonHALModule())
           .addModule(new Jdk8Module())
           .build();

pom.xml

@@ -104,9 +104,6 @@
     <jackson.version>2.13.4</jackson.version>
     <jjwt.version>0.11.5</jjwt.version>
 
-    <cloudevents.version>1.2.0</cloudevents.version>
-    <!--  we'll stick to this CloudEvents v1 version for now -->
-
     <!-- https://github.com/openapi-tools/jackson-dataformat-hal/blob/v1.0.9/pom.xml -->
     <jackson-dataformat-hal.version>1.0.9</jackson-dataformat-hal.version>
 
@@ -124,12 +121,6 @@
         <version>${commons-text.version}</version>
       </dependency>
 
-      <dependency>
-        <groupId>io.cloudevents</groupId>
-        <artifactId>cloudevents-api</artifactId>
-        <version>${cloudevents.version}</version>
-      </dependency>
-
       <dependency>
         <groupId>org.apache.commons</groupId>
         <artifactId>commons-lang3</artifactId>