Delete .travis.yml

Removing Travis CI as ASF Infra has decided to move away from Travis.
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index f14890c..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,33 +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
-sudo: false
-jdk:
-- openjdk8
-install: true
-script: "./travis.sh"
-env:
-  global:
-    - BUILD_SNAPSHOTS_BRANCH=develop
-    - ARTIFACTORY_URL=https://mifos.jfrog.io/mifos
-    - ARTIFACTORY_USER=travis-ci
-    - secure: "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"
-after_failure:
-  - ./gradlew rat
-  - cat build/reports/rat/rat-report.txt