[FIX] sale_coupon: remove coupon_program reward if req. not met anymore

Before this commit:
If a reward had been given on the SO with a coupon_program code and that the
program had requirements and that these requirements are not met anymore,
recomputing the SO would not remove the reward.

Now:
If the SO does not met the program requirements anymore, we remove the reward

Step to reproduce:
  - Create a coupon_program with quantity or amount requirements (eg: $200)
  - Generate a coupon for that program
  - Add $200 worth of products (matching the program domain) in the SO
  - Add the generated coupon to that SO
  - You should get the reward as you have $200 in the SO
  - Remove some products from the SO to go below $200
  - Recompute coupons, the reward won't be removed

Closes #3062

0 files changed, 0 insertions, 0 deletions