Fixed maven warnings in plugin build.

features/extensions-feature/org.wso2.carbon.andes.extensions.device.mgt.mqtt.authorization.feature/pom.xml

@@ -47,10 +47,6 @@
             <groupId>io.github.openfeign</groupId>
             <artifactId>feign-gson</artifactId>
         </dependency>
-        <dependency>
-            <groupId>io.github.openfeign</groupId>
-            <artifactId>feign-jaxrs</artifactId>
-        </dependency>
     </dependencies>
     <build>
         <plugins>
@@ -86,7 +82,7 @@
                                 </bundleDef>
                             </bundles>
                             <importFeatures>
-                                <importFeatureDef>org.wso2.carbon.core.server:4.4.9</importFeatureDef>
+                                <importFeatureDef>org.wso2.carbon.core.server:${carbon.kernel.version}</importFeatureDef>
                             </importFeatures>
                         </configuration>
                     </execution>

pom.xml

@@ -1105,12 +1105,6 @@
                 <artifactId>org.wso2.carbon.user.mgt</artifactId>
                 <version>${carbon.commons.version}</version>
             </dependency>
-            <dependency>
-                <groupId>junit</groupId>
-                <artifactId>junit</artifactId>
-                <scope>test</scope>
-                <version>${junit.version}</version>
-            </dependency>
             <dependency>
                 <groupId>com.jayway.jsonpath</groupId>
                 <artifactId>json-path</artifactId>