fix: Replace java compile target with the default defined version

Currently, the hmm-lib module is still build in compatibility mode. Let's fix this. Even core has one defined. We can just use the one from the parent.

Author: MichaelsJP

core/pom.xml

@@ -182,14 +182,6 @@
                     <failOnUnableToExtractRepoInfo>false</failOnUnableToExtractRepoInfo>
                 </configuration>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <configuration>
-                    <source>17</source>
-                    <target>17</target>
-                </configuration>
-            </plugin>
         </plugins>
 
         <!-- make version available at runtime via version file -->

hmm-lib/pom.xml

@@ -57,17 +57,4 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     </properties>
-
-    <build>
-        <plugins>
-            <plugin>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.1</version>
-                <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
 </project>