Removing license from Travis file

as it is excluded in the Maven config of RAT
(see http://svn.apache.org/viewvc?rev=1820236&view=rev)



git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/trunk@1820484 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/.travis.yml b/.travis.yml
index 0b7dda1..b580037 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,19 +1,3 @@
-#
-# 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
 jdk:
   - oraclejdk8