Remove POM RAT plugin superseded by sbt's licence plugin.

Author: yruslan

pom.xml

@@ -367,46 +367,6 @@
                     </dependency>
                 </dependencies>
             </plugin>
-            <plugin>
-                <groupId>org.apache.rat</groupId>
-                <artifactId>apache-rat-plugin</artifactId>
-                <version>${maven.rat.plugin.version}</version>
-                <executions>
-                    <execution>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                    </execution>
-                </executions>
-                <configuration>
-                    <excludes>
-                        <exclude>**/*.sbt</exclude>
-                        <exclude>**/*.properties</exclude>
-                        <exclude>**/*.json</exclude>
-                        <exclude>**/*.csv</exclude>
-                        <exclude>**/*.txt</exclude>
-                        <exclude>**/*.bin</exclude>
-                        <exclude>**/*.md</exclude>
-                        <exclude>**/*.iml</exclude>
-                        <exclude>**/*.csv</exclude>
-                        <exclude>**/*.cob</exclude>
-                        <exclude>**/*.cpy</exclude>
-                        <exclude>**/*.svg</exclude>
-                        <exclude>**/*.plot</exclude>
-                        <exclude>**/*.yml</exclude>
-                        <exclude>**/*.interp</exclude>
-                        <exclude>**/*.tokens</exclude>
-                        <exclude>**/_*</exclude>
-                        <exclude>**/dependency-reduced-pom.xml</exclude>
-                        <exclude>**/.idea/**</exclude>
-                        <exclude>**/target/**</exclude>
-                        <exclude>**/org.apache.spark.sql.sources.DataSourceRegister</exclude>
-                        <exclude>dependency-reduced-pom.xml</exclude>
-                        <exclude>.github/CODEOWNERS</exclude>
-                    </excludes>
-                </configuration>
-            </plugin>
         </plugins>
     </build>