remove LogViewServiceGrpc.java file and pom modify (#1436)

dolphinscheduler-rpc/pom.xml

@@ -34,7 +34,6 @@
         <maven.compiler.source>1.7</maven.compiler.source>
         <maven.compiler.target>1.7</maven.compiler.target>
 
-        <protobuf.output.directory>${project.basedir}/src/main/java</protobuf.output.directory>
         <protobuf.version>3.5.1</protobuf.version>
         <grpc.version>1.9.0</grpc.version>
     </properties>
@@ -97,29 +96,6 @@
                         <goals>
                             <goal>compile-custom</goal>
                         </goals>
-                        <configuration>
-                            <outputDirectory>${protobuf.output.directory}</outputDirectory>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-            <!-- add generated proto buffer classes into the package -->
-            <plugin>
-                <groupId>org.codehaus.mojo</groupId>
-                <artifactId>build-helper-maven-plugin</artifactId>
-                <version>1.7</version>
-                <executions>
-                    <execution>
-                        <id>add-classes</id>
-                        <phase>generate-sources</phase>
-                        <goals>
-                            <goal>add-source</goal>
-                        </goals>
-                        <configuration>
-                            <sources>
-                                <source>${protobuf.output.directory}</source>
-                            </sources>
-                        </configuration>
                     </execution>
                 </executions>
             </plugin>