Remove unnecessary add-opens compiler configurations (#630)

When building, the following warning is logged for every module:
```
[INFO] --- compiler:3.11.0:compile (default-compile) @ data-locality ---
[INFO] Changes detected - recompiling the module! :source
[INFO] Compiling 4 source files with javac [debug release 17] to target/classes
[WARNING] --add-opens has no effect at compile time
```

The `add-opens` workaround is [no longer required with newer versions of Lombok](projectlombok/lombok#2681) anyway and so should instead be removed.

pom.xml

@@ -107,19 +107,6 @@
                 <configuration>
                     <release>${java.version}</release>
                     <encoding>${project.build.sourceEncoding}</encoding>
-                    <!-- args needed for modules using lombok -->
-                    <compilerArgs>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED</arg>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED</arg>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED</arg>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED</arg>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED</arg>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED</arg>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED</arg>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED</arg>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED</arg>
-                        <arg>--add-opens=jdk.compiler/com.sun.tools.javac.jvm=ALL-UNNAMED</arg>
-                    </compilerArgs>
                 </configuration>
             </plugin>
             <plugin>