Delete .travis.yml
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index ad74997..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,93 +0,0 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
-
-language: java
-
-env:
-  global:
-    - JABBA_HOME=$HOME/.jabba
-    # RI binaries are the Oracle reference implementation
-    - DEFAULT_JDK=adopt@1.8.0-252
-
-cache:
-  directories:
-    - "$HOME/.m2"
-    - "$HOME/.jabba"
-
-jobs:
-  include:
-    # JDK 8 builds (LTS)
-    - os: linux
-      env:
-        - TRAVIS_JDK=$DEFAULT_JDK
-    - os: linux
-      env:
-        - TRAVIS_JDK=adopt-openj9@1.8.0-252
-    - os: linux
-      env:
-        - TRAVIS_JDK=amazon-corretto@1.8.252-09.1
-    - os: linux
-      env:
-        - TRAVIS_JDK=liberica@1.8.252-9
-    - os: linux
-      env:
-        - TRAVIS_JDK=zulu@1.8.252
-    # JDK 11 builds (LTS)
-    - os: linux
-      env:
-        - TRAVIS_JDK=adopt@1.11.0-6
-    - os: linux
-      env:
-        - TRAVIS_JDK=adopt-openj9@1.11.0-6
-    - os: linux
-      env:
-        - TRAVIS_JDK=amazon-corretto@1.11.0-6.10.1
-    - os: linux
-      env:
-        - TRAVIS_JDK=zulu@1.11.0-6
-    # JDK 14 builds (latest)
-    - os: linux
-      env:
-        - TRAVIS_JDK=adopt@1.14.0-0
-    - os: linux
-      env:
-        - TRAVIS_JDK=adopt-openj9@1.14.0-0
-    - os: linux
-      env:
-        - TRAVIS_JDK=openjdk@1.14.0
-
-before_cache:
-  - rm -rf "$HOME/.m2/repository/org/apache/shiro"
-
-before_install:
-  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then curl -sL https://github.com/shyiko/jabba/raw/master/install.sh | bash && . $JABBA_HOME/jabba.sh; fi
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then curl -sL https://github.com/shyiko/jabba/raw/master/install.sh | bash && . $JABBA_HOME/jabba.sh; fi
-
-install:
-  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then $JABBA_HOME/bin/jabba install $TRAVIS_JDK; jabba use $TRAVIS_JDK; fi
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then $JABBA_HOME/bin/jabba install $TRAVIS_JDK; jabba use $TRAVIS_JDK; fi
-  - java -version
-
-script:
-- "mvn -e -Pdocs install apache-rat:check -B -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn"
-
-after_success:
-  # do a coverage analyses for each PR or branch, but only once for each build matrix.
-  - |
-    if [ "$TRAVIS_JDK" == "$DEFAULT_JDK" ]; then
-      bash <(curl -s https://codecov.io/bash) -f test-coverage/target/site/jacoco-aggregate/jacoco.xml
-    fi