Cleanup pom

- remove duplicated sections with parent
- use newer plugins versions
diff --git a/doxia-doc-renderer/pom.xml b/doxia-doc-renderer/pom.xml
index ce99b22..da2a5bd 100644
--- a/doxia-doc-renderer/pom.xml
+++ b/doxia-doc-renderer/pom.xml
@@ -57,6 +57,18 @@
       <groupId>org.apache.maven.doxia</groupId>
       <artifactId>doxia-module-fo</artifactId>
       <version>${doxiaVersion}</version>
+      <!-- TODO remove with upgrade to 1.9.2 -->
+      <exclusions>
+        <!-- exclude JAI - missing on Maven Central -->
+        <exclusion>
+          <groupId>javax.media</groupId>
+          <artifactId>jai-core</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>com.sun.media</groupId>
+          <artifactId>jai-codec</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <!-- The modules are not in doxia core anymore so you have to state a dependency so that
          the component descriptor gets picked up. -->
@@ -144,25 +156,6 @@
           </systemProperties>
         </configuration>
       </plugin>
-      <plugin><!-- TODO remove when minimum Java set to 7 -->
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-enforcer-plugin</artifactId>
-        <executions>
-          <execution>
-            <id>enforce-bytecode-version</id>
-            <configuration>
-              <rules>
-                <enforceBytecodeVersion>
-                  <excludes>
-                    <exclude>org.apache.maven.doxia:doxia-module-markdown</exclude>
-                    <exclude>org.nibor.autolink:autolink</exclude>
-                  </excludes>
-                </enforceBytecodeVersion>
-              </rules>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
     </plugins>
   </build>
 </project>
diff --git a/pom.xml b/pom.xml
index f1cf8c0..0c19bae 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
     <groupId>org.apache.maven</groupId>
     <artifactId>maven-parent</artifactId>
     <version>34</version>
-    <relativePath>../../pom/maven/pom.xml</relativePath>
+    <relativePath />
   </parent>
 
   <groupId>org.apache.maven.doxia</groupId>
@@ -69,7 +69,6 @@
   </distributionManagement>
 
   <properties>
-    <javaVersion>7</javaVersion>
     <doxiaVersion>1.9.1</doxiaVersion>
     <maven.site.path>doxia-sitetools-archives/doxia-sitetools-LATEST</maven.site.path>
     <project.build.outputTimestamp>2020-02-19T07:03:09Z</project.build.outputTimestamp>
@@ -241,6 +240,16 @@
             </excludes>
           </configuration>
         </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-javadoc-plugin</artifactId>
+          <version>3.2.0</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.1.0</version>
+        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>
@@ -281,33 +290,6 @@
           </execution>
         </executions>
       </plugin>
-      <plugin>
-        <artifactId>maven-enforcer-plugin</artifactId>
-        <executions>
-          <execution>
-            <id>enforce-bytecode-version</id>
-            <goals>
-              <goal>enforce</goal>
-            </goals>
-            <configuration>
-              <rules>
-                <enforceBytecodeVersion>
-                  <maxJdkVersion>${maven.compiler.target}</maxJdkVersion>
-                </enforceBytecodeVersion>
-              </rules>
-              <fail>true</fail>
-            </configuration>
-          </execution>
-        </executions>
-        <dependencies>
-          <dependency>
-            <groupId>org.codehaus.mojo</groupId>
-            <artifactId>extra-enforcer-rules</artifactId>
-            <version>1.2</version>
-            <scope>compile</scope>
-          </dependency>
-        </dependencies>
-      </plugin>
     </plugins>
   </build>
 
@@ -319,7 +301,7 @@
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-changes-plugin</artifactId>
-            <version>2.6</version>
+            <version>2.12.1</version>
             <inherited>false</inherited>
             <configuration>
               <columnNames>Type,Key,Summary,Resolution,Assignee</columnNames>