Simplify specifying compatibleSinceVersion

This property is available since maven-hpi-plugin 3.2

pom.xml

@@ -13,6 +13,7 @@
     <properties>
         <revision>2.4.3</revision>
         <changelist>-SNAPSHOT</changelist>
+        <hpi.compatibleSinceVersion>2.0</hpi.compatibleSinceVersion>
         <jenkins.version>2.138.3</jenkins.version>
         <java.level>8</java.level>
         <workflow-cps.version>2.30</workflow-cps.version>
@@ -112,8 +113,8 @@
             <version>1.54</version>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
+
     <repositories>
         <repository>
             <id>repo.jenkins-ci.org</id>
@@ -126,17 +127,4 @@
             <url>https://repo.jenkins-ci.org/public/</url>
         </pluginRepository>
     </pluginRepositories>
-
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.jenkins-ci.tools</groupId>
-                <artifactId>maven-hpi-plugin</artifactId>
-                <extensions>true</extensions>
-                <configuration>
-                    <compatibleSinceVersion>2.0</compatibleSinceVersion>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
 </project>