Configure spotless to remove unused imports

Author: leonardehrenfried

pom.xml

@@ -115,6 +115,11 @@
                     <artifactId>prettier-maven-plugin</artifactId>
                     <version>${plugin.prettier.version}</version>
                 </plugin>
+                <plugin>
+                    <groupId>com.diffplug.spotless</groupId>
+                    <artifactId>spotless-maven-plugin</artifactId>
+                    <version>2.46.1</version>
+                </plugin>
             </plugins>
         </pluginManagement>
         <plugins>
@@ -307,6 +312,25 @@
                     </execution>
                 </executions>
             </plugin>
+            
+            <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <phase>compile</phase>
+                        <goals>
+                            <goal>apply</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <java>
+                        <removeUnusedImports/>
+                    </java>
+                </configuration>
+            </plugin>
+
             <plugin>
                 <groupId>com.google.cloud.tools</groupId>
                 <artifactId>jib-maven-plugin</artifactId>