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
1 file changed