don't run app deploy tests and spread out unit tests to 4 containers. closes #1787

tests/unit/plugin.bats

@@ -1,45 +0,0 @@
-#!/usr/bin/env bats
-
-load test_helper
-TEST_PLUGIN_NAME=smoke-test-plugin
-TEST_PLUGIN_GIT_REPO=https://github.com/dokku/${TEST_PLUGIN_NAME}.git
-
-remove_test_plugin() {
-  rm -rf $PLUGIN_ENABLED_PATH/$TEST_PLUGIN_NAME $PLUGIN_AVAILABLE_PATH/$TEST_PLUGIN_NAME
-}
-
-teardown() {
-  remove_test_plugin || true
-}
-
-@test "(plugin) plugin:install, plugin:disable, plugin:uninstall" {
-  run bash -c "dokku plugin:install $TEST_PLUGIN_GIT_REPO"
-  echo "output: "$output
-  echo "status: "$status
-  assert_success
-
-  run bash -c "dokku plugin | grep enabled | grep $TEST_PLUGIN_NAME"
-  echo "output: "$output
-  echo "status: "$status
-  assert_success
-
-  run bash -c "dokku plugin:disable $TEST_PLUGIN_NAME"
-  echo "output: "$output
-  echo "status: "$status
-  assert_success
-
-  run bash -c "dokku plugin | grep disabled | grep $TEST_PLUGIN_NAME"
-  echo "output: "$output
-  echo "status: "$status
-  assert_success
-
-  run bash -c "dokku plugin:uninstall $TEST_PLUGIN_NAME"
-  echo "output: "$output
-  echo "status: "$status
-  assert_success
-
-  run bash -c "dokku plugin | grep $TEST_PLUGIN_NAME"
-  echo "output: "$output
-  echo "status: "$status
-  assert_failure
-}