build: Removing un-used django versions from tox and other places. (#30270)

pavelib/prereqs.py

@@ -27,7 +27,7 @@ toxenv = os.environ.get('TOXENV')
 if toxenv and toxenv != 'quality-django32':
     PYTHON_REQ_FILES = ['requirements/edx/testing.txt']
 elif toxenv and toxenv == 'quality-django32':
-    PYTHON_REQ_FILES = ['requirements/edx/testing.txt', 'requirements/edx/django32.txt']
+    PYTHON_REQ_FILES = ['requirements/edx/testing.txt', 'requirements/edx/django.txt']
 else:
     PYTHON_REQ_FILES = ['requirements/edx/development.txt']
 

requirements/edx/django30.txt

@@ -1,2 +0,0 @@
-Django>=3.0,<3.1
-django-cookies-samesite==0.9.0

requirements/edx/django31.txt

@@ -1 +0,0 @@
-Django>=3.1,<3.2

requirements/edx/django32.txt

@@ -1,2 +0,0 @@
-Django>=3.2,<3.3
-

scripts/xdist/prepare_xdist_nodes.sh

@@ -11,14 +11,8 @@ python scripts/xdist/pytest_worker_manager.py -a up -n ${XDIST_NUM_WORKERS} \
 -iam ${XDIST_WORKER_IAM_PROFILE_ARN}
 
 # Install the correct version of Django depending on which tox environment (if any) is in use
-if [[ -z ${TOXENV+x} ]] || [[ ${TOXENV} == 'null' ]]; then
+if [[ -z ${TOXENV+x} ]] || [[ ${TOXENV} == 'null' ]] || [[ ${TOXENV} == *'django32'* ]]; then
     DJANGO_REQUIREMENT="requirements/edx/django.txt"
-elif [[ ${TOXENV} == *'django30'* ]]; then
-    DJANGO_REQUIREMENT="requirements/edx/django30.txt"
-elif [[ ${TOXENV} == *'django31'* ]]; then
-    DJANGO_REQUIREMENT="requirements/edx/django31.txt"
-elif [[ ${TOXENV} == *'django32'* ]]; then
-    DJANGO_REQUIREMENT="requirements/edx/django32.txt"
 fi
 
 ip_list=$(<pytest_worker_ips.txt)

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py38-django{22,30,31,32}, quality-django{32}
+envlist = py38-django{32}, quality-django{32}
 
 # This is needed to prevent the lms, cms, and openedx packages inside the "Open
 # edX" package (defined in setup.py) from getting installed into site-packages
@@ -67,10 +67,7 @@ passenv =
     XDIST_WORKER_SECURITY_GROUP
     XDIST_WORKER_SUBNET
 deps =
-    django22: -r requirements/edx/django.txt
-    django30: -r requirements/edx/django30.txt
-    django31: -r requirements/edx/django31.txt
-    django32: -r requirements/edx/django32.txt
+    django32: -r requirements/edx/django.txt
     -r requirements/edx/testing.txt
 whitelist_externals =
     /bin/bash