Improve Travis CI build Performance

Author: chenzhang22

.travis.yml

@@ -6,6 +6,6 @@ cache:
   directories:
     - $HOME/.m2
 install: true
-before_script: travis_wait 45 ./mvnw install -q -U -DskipTests=true -Dmaven.test.redirectTestOutputToFile=true
+before_script: ./mvnw install -q -U -DskipTests=true -Dmaven.test.redirectTestOutputToFile=true
 script: ./mvnw install -q -nsu -Dmaven.test.redirectTestOutputToFile=true
 dist: trusty