MNEMONIC-607: Remove Travis-CI from project

Signed-off-by: Xiaojin Jiao <xj.jiao@gmail.com>
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index aca77e6..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,42 +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.
-#
-
-sudo: required
-dist: trusty
-language: python
-python:
-  - 2.7
-
-services:
-  - docker
-
-branches:
-  only:
-    - master
-
-before_install:
-  - docker pull mnemonic/mneci:v2
-  - docker images
-
-install:
-  - pip install mock
-
-script:
-  - ls -l $TRAVIS_BUILD_DIR
-  - docker run -v $TRAVIS_BUILD_DIR:/ws/mnemonic --rm -t mnemonic/mneci:v2 /bin/bash -c "cd /ws/mnemonic; git log -1 --stat; git clean -xdf; mvn clean install && mvn javadoc:javadoc"
-#  the runall cannot be fulfilled using free plan since it needs more resource to run.
-#  - docker run -v $TRAVIS_BUILD_DIR:/ws/mnemonic --rm -t mnemonic/mneci:v2 /bin/bash -c "cd /ws/mnemonic; git log -1 --stat; bin/runall.sh"