This reverts commit 2d188348.

Added salutation field in person model, also updated
refresh course metadata command and API to map this
new field.

LEARNER-4000

Increase the course run short description override db limit to count
for foreign characters.

LEARNER-4673

[LEARNER-4061]

We weren't propagating entitlement type/price changes to existing
seat products.

LEARNER-4347

The feature has fully landed. We just want it always on now.

LEARNER-4152

In the frontend, TinyMC is removing `\n` `&nbsp` which backend wasn't causing mismatch between the counts. Now updated the backend to use `get_text(strip=True)` method which will remove these from the text.

Revert "EDUCATOR-2231 Drop the enrollment start and end date fields from publisher course runs model"

This reverts commit d5a6bea1.

When publishing, we want to give ecommerce the UUID of the course
so that it doesn't have to turn around and ask us for that same bit
of information.