remove travis-ci artifacts

.travis.yml

@@ -1,23 +0,0 @@
-sudo: false
-language: java
-
-dist:
-  - trusty
-
-before_cache:
-  # No sense in caching current build artifacts
-  - rm -rf $HOME/.m2/repository/com/zaxxer
-
-cache:
-  directories:
-    - $HOME/.m2/repository
-
-install: /bin/true
-
-jdk: openjdk11
-
-script:
-  - mvn package -Dmaven.javadoc.skip=true -V -B
-
-after_success:
-  - bash <(curl -s https://codecov.io/bash)

travis-toolchains.xml

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF8"?>
-<toolchains>
-   <toolchain>
-      <type>paths</type>
-      <provides>
-         <id>java</id>
-      </provides>
-      <configuration>
-         <paths>
-            <path>/usr/lib/jvm/java-8-oracle/bin</path>
-         </paths>
-      </configuration>
-   </toolchain>
-</toolchains>