refactor!: stop using import_shims

Attempting to import packages from
lms/djangoapps, cms/djangoapps, or common/djangoapps
as if they are import roots will now
simply raise ImportErrors (like any other invalid
import) instead of DeprecatedEdxPlatformImportError.

See docs/decisions/0007-sys-path-modification-removal.rst
for more details.

cms/envs/common.py

@@ -492,11 +492,6 @@ COURSES_ROOT = ENV_ROOT / "data"
 
 GITHUB_REPO_ROOT = ENV_ROOT / "data"
 
-# TODO: This path modification exists as temporary support for deprecated import patterns.
-# It will be removed in an upcoming Open edX release.
-# See docs/decisions/0007-sys-path-modification-removal.rst
-sys.path.append(REPO_ROOT / 'import_shims' / 'studio')
-
 # For geolocation ip database
 GEOIP_PATH = REPO_ROOT / "common/static/data/geoip/GeoLite2-Country.mmdb"
 

lms/envs/common.py

@@ -970,11 +970,6 @@ NODE_MODULES_ROOT = REPO_ROOT / "node_modules"
 
 DATA_DIR = COURSES_ROOT
 
-# TODO: This path modification exists as temporary support for deprecated import patterns.
-# It will be removed in an upcoming Open edX release.
-# See docs/decisions/0007-sys-path-modification-removal.rst
-sys.path.append(REPO_ROOT / 'import_shims' / 'lms')
-
 # For Node.js
 
 system_node_path = os.environ.get("NODE_PATH", NODE_MODULES_ROOT)

scripts/xsslint_config.py

@@ -30,7 +30,6 @@ SKIP_DIRS = (
     'spec',
     'test_root',
     'vendor',
-    'import_shims',
 )