tests: tidy up dross after fixing issue.

.travis.yml

@@ -10,11 +10,11 @@ python:
 - "2.7"
 
 env:
-#- MODE=mitogen MITOGEN_TEST_DISTRO=debian
-#- MODE=mitogen MITOGEN_TEST_DISTRO=centos
-#- MODE=debops
+- MODE=mitogen MITOGEN_TEST_DISTRO=debian
+- MODE=mitogen MITOGEN_TEST_DISTRO=centos
+- MODE=debops
 - MODE=ansible ANSIBLE_VERSION=2.4.3.0 MITOGEN_TEST_DISTRO=debian
-#- MODE=ansible ANSIBLE_VERSION=2.5.0 MITOGEN_TEST_DISTRO=centos
+- MODE=ansible ANSIBLE_VERSION=2.5.0 MITOGEN_TEST_DISTRO=centos
 
 install:
 - pip install -r dev_requirements.txt

.travis/ansible_tests.sh

@@ -51,8 +51,7 @@ echo \
 # Build the binaries.
 make -C ${TRAVIS_BUILD_DIR}/tests/ansible
 
-sudo apt install -y sshpass bsdmainutils
-xxd ${TRAVIS_BUILD_DIR}/tests/ansible/lib/modules/custom_binary_producing_junk
+sudo apt install -y sshpass
 
 echo travis_fold:end:job_setup