test: deactivate e2e tests except on dev and master

Author: evansiroky

scripts/check-if-e2e-should-run-on-travis.sh

@@ -12,5 +12,3 @@ else
     echo 'Will run E2E tests because this is a commit to master or dev'
   fi
 fi
-
-export SHOULD_RUN_E2E=true;