Remove Towny JAR so it won't get picked up

jitpack.yml

@@ -5,6 +5,6 @@ jdk:
 install:
    - echo "Downloading Towny JAR..."
    - 'wget -O "Towny.jar" --header="Accept-Language: en-us,en;q=0.5" http://palmergames.com/file-repo/Towny%20Advanced/Development/0.91.1.5/Towny.jar'
-   - head Towny.jar
    - mvn install:install-file -Dfile=Towny.jar -DgroupId=com.palmergames -DartifactId=Towny -Dversion=0.91.1.5 -Dpackaging=jar
    - mvn clean install -DskipTests 
+   - rm Towny.jar