Simplify pom file.

Removed plugins that were just there to avoid default versions.

Author: boris-spas

pom.xml

@@ -37,14 +37,6 @@
     <build>
         <pluginManagement>
             <plugins>
-                <plugin>
-                    <artifactId>maven-clean-plugin</artifactId>
-                    <version>3.1.0</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-resources-plugin</artifactId>
-                    <version>3.0.2</version>
-                </plugin>
                 <plugin>
                     <artifactId>maven-compiler-plugin</artifactId>
                     <version>3.8.0</version>
@@ -58,26 +50,6 @@
                         <argLine>-XX:-UseJVMCIClassLoader</argLine>
                     </configuration>
                 </plugin>
-                <plugin>
-                    <artifactId>maven-jar-plugin</artifactId>
-                    <version>3.0.2</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-install-plugin</artifactId>
-                    <version>2.5.2</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-deploy-plugin</artifactId>
-                    <version>2.8.2</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-site-plugin</artifactId>
-                    <version>3.7.1</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-project-info-reports-plugin</artifactId>
-                    <version>3.0.0</version>
-                </plugin>
             </plugins>
         </pluginManagement>
     </build>