Remove unused images

.gitlab-ci.yml

@@ -32,10 +32,8 @@ ruby-2.3-git-2.7-phantomjs-2.1 test: *test_build
 ruby-2.3.3-git-2.7-phantomjs-2.1-node-7.1 test: *test_build
 ruby-2.3.3-golang-1.8-git-2.7-phantomjs-2.1-node-7.1 test: *test_build
 ruby-2.3.3-golang-1.8-git-2.7-phantomjs-2.1-node-7.1-postgresql-9.6 test: *test_build
-ruby-2.3-static-analyses test: *test_build
 www-gitlab-com test: *test_build
 doc-gitlab-com test: *test_build
-terraform-0.1 test: *test_build
 gitlab-qa test: *test_build
 golang-1.5-git-2.8.4 test: *test_build
 golang-1.6-git-2.8.4 test: *test_build
@@ -47,10 +45,8 @@ ruby-2.3-git-2.7-phantomjs-2.1: *build_and_deploy
 ruby-2.3.3-git-2.7-phantomjs-2.1-node-7.1: *build_and_deploy
 ruby-2.3.3-golang-1.8-git-2.7-phantomjs-2.1-node-7.1: *build_and_deploy
 ruby-2.3.3-golang-1.8-git-2.7-phantomjs-2.1-node-7.1-postgresql-9.6: *build_and_deploy
-ruby-2.3-static-analyses: *build_and_deploy
 www-gitlab-com: *build_and_deploy
 doc-gitlab-com: *build_and_deploy
-terraform-0.1: *build_and_deploy
 gitlab-qa: *build_and_deploy
 golang-1.5-git-2.8.4: *build_and_deploy
 golang-1.6-git-2.8.4: *build_and_deploy

Dockerfile.ruby-2.3-static-analyses

-FROM ruby:2.3-alpine
-
-RUN gem install knapsack
-RUN apk add --update bash && rm -rf /var/cache/apk/*
\ No newline at end of file

Dockerfile.terraform-0.1

-FROM ubuntu:xenial
-
-RUN apt-get update -y
-RUN apt-get install -y sudo curl git unzip wget unzip
-RUN wget -nc https://releases.hashicorp.com/terraform/0.8.5/terraform_0.8.5_linux_amd64.zip -O terraform.zip
-RUN unzip terraform.zip
-
-ENV LANG en_US.UTF-8  
-ENV LANGUAGE en_US:en  
-ENV LC_ALL en_US.UTF-8