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 93f4db3..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,30 +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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"