travis: deps script update 2

.travis.yml

@@ -2,7 +2,9 @@ language: python
 python:
   - "3.6"
 before_install:
-  - sudo bash ./ci/ci_dependencies.sh
+  - sudo add-apt-repository universe -y
+  - sudo apt-get update -q
+  - sudo apt-get install -y redis
   - pip3 install black
   - pip3 install pylint
 install:

ci/ci_dependencies.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-
-install_dependencies() {
-  add-apt-repository universe
-  apt-get update -q
-  apt-get install -y redis
-}
-
-install_dependencies()