Get rid of test.txt

Rationale: it effectively a duplicate of what's in local.txt

{{cookiecutter.project_slug}}/requirements/test.txt

@@ -1,18 +0,0 @@
-# Test dependencies go here.
--r base.txt
-
-{% if cookiecutter.windows == 'y' -%}
-# Python-PostgreSQL Database Adapter
-# If using Win for dev, this assumes Unix in test/prod
-psycopg2==2.7.4
-{%- endif %}
-
-coverage==4.5.1
-flake8==3.5.0 # pyup: != 2.6.0
-django-test-plus==1.0.22
-factory-boy==2.10.0
-django-coverage-plugin==1.5.0
-
-# pytest
-pytest-django==3.1.2
-pytest-sugar==0.9.1

{{cookiecutter.project_slug}}/utility/install_python_dependencies.sh

@@ -35,7 +35,6 @@ if [ -z "$VIRTUAL_ENV" ]; then
 else
 
     pip install -r $PROJECT_DIR/requirements/local.txt
-    pip install -r $PROJECT_DIR/requirements/test.txt
     {% if cookiecutter.use_heroku == "y" -%}
     pip install -r $PROJECT_DIR/requirements.txt
     {%- endif %}