Remove last traces of custom jaudiotagger, undoing what was left of #523

pom.xml

@@ -35,12 +35,6 @@
             <name>Local Repository</name>
             <url>file://${project.basedir}/../repo</url>
         </repository>
-        <!-- Not functional currently, so retrieve dependency from local repo
-        <repository>
-            <id>jaudiotagger-repository</id>
-            <url>https://dl.bintray.com/ijabz/maven</url>
-        </repository>
-         -->
         <repository>
             <id>4thline-repo</id>
             <url>http://4thline.org/m2</url>

repo/net/jthink/jaudiotagger/2.2.6.20210504/jaudiotagger-2.2.6.20210504.pom

@@ -1,6 +0,0 @@
-<project>
-    <modelVersion>4.0.0</modelVersion>
-    <groupId>net.jthink</groupId>
-    <artifactId>jaudiotagger</artifactId>
-    <version>2.2.6.20210504</version>
-</project>