INT-2238 removing warnings in JavaDoc

spring-integration-scripting/src/main/java/org/springframework/integration/scripting/ScriptExecutor.java

@@ -10,6 +10,7 @@
  * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
  * specific language governing permissions and limitations under the License.
  */
+
 package org.springframework.integration.scripting;
 
 import java.util.Map;
@@ -23,18 +24,14 @@ import org.springframework.scripting.ScriptSource;
 public interface ScriptExecutor {
 
 	/**
-	 * 
 	 * @param scriptSource
-	 * @return
 	 */
 	public abstract Object executeScript(ScriptSource scriptSource);
 	
 	/** 
-	 * 
 	 * @param scriptSource
 	 * @param variables -bind variable
-	 * @return
 	 */
 	public abstract Object executeScript(ScriptSource scriptSource,Map<String,Object> variables);
 	
-}
+}