Revert "Add feature flag for Import/Export API in LMS"

This reverts commit 85b3bfe4f6.

lms/envs/common.py

@@ -414,9 +414,6 @@ FEATURES = {
     # Credit course API
     'ENABLE_CREDIT_API': False,
 
-    # Full Course/Library Import/Export API
-    'ENABLE_IMPORT_EXPORT_LMS': False,
-
     # The block types to disable need to be specified in "x block disable config" in django admin.
     'ENABLE_DISABLING_XBLOCK_TYPES': True,
 }

lms/envs/test.py

@@ -494,6 +494,3 @@ PROFILE_IMAGE_MIN_BYTES = 100
 FEATURES['ENABLE_LTI_PROVIDER'] = True
 INSTALLED_APPS += ('lti_provider',)
 AUTHENTICATION_BACKENDS += ('lti_provider.users.LtiBackend',)
-
-# Enable the Full Course/Library Import/Export API
-FEATURES['ENABLE_IMPORT_EXPORT_LMS'] = True