fix(dependency): remove Imcompatible plugin with jdk15

pom.xml

@@ -178,21 +178,6 @@
                     <showWarnings>true</showWarnings>
                 </configuration>
             </plugin>
-            <plugin>
-                <artifactId>maven-javadoc-plugin</artifactId>
-                <version>2.10.4</version>
-                <configuration>
-                    <charset>UTF-8</charset>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>attach-javadocs</id>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
             <plugin>
                 <artifactId>maven-source-plugin</artifactId>
                 <version>3.0.1</version>