Remove echo command

Remove the echo command as the last command in the build step so that
CodeBuild uses the exit status of mvn as the result of the job.

Author: dagnir

buildspecs/s3-regression-tests.yml

@@ -12,7 +12,6 @@ phases:
           exit 0
         fi
         mvn clean install -P s3-regression-tests -pl :s3-tests -am -T1C -Dregression.test="$REGRESSION_TEST" $MAVEN_OPTIONS
-        echo $MAVEN_OPTIONS
     finally:
       - mkdir -p codebuild-test-reports
       - find ./ -name 'TEST-*.xml' -type f -exec cp {} codebuild-test-reports/ \;