Dependency updates for java code simulator (#544)

resources/code-template/java/sendD2C/pom.xml

@@ -9,12 +9,7 @@
     <dependency>
       <groupId>com.microsoft.azure.sdk.iot</groupId>
       <artifactId>iot-device-client</artifactId>
-      <version>1.13.3</version>
-    </dependency>
-    <dependency>
-      <groupId>com.google.code.gson</groupId>
-      <artifactId>gson</artifactId>
-      <version>2.3.1</version>
+      <version>1.34.3</version>
     </dependency>
   </dependencies>
   <properties>

resources/code-template/java/sendD2C/src/main/resources/log4j2.xml

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Configuration status="WARN">
-    <Appenders>
-        <Console name="Console" target="SYSTEM_OUT">
-            <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
-        </Console>
-    </Appenders>
-    <Loggers>
-        <Root level="error">
-            <AppenderRef ref="Console"/>
-        </Root>
-    </Loggers>
-</Configuration>