Merged PR 2887: Check-In Hero - Removing unused fields + schema changes

# Description
This PR closes the ticket #20046

Changes:
* Removes temporary fields marked as legacy in `core__vr_check_in_cover`, after the changes in the 3 PBI Check-In Hero reports.
* Additionally, I modified the schema entry to comply with the current fields available in this model.

# Checklist

- [X] The edited models and dependants run properly with production data. *Checked in local changing the sources to localhost after dropping the fields.*
- [X] The edited models are sufficiently documented.
- [X] The edited models contain PK tests, and I've ran and passed them.
- [ ] I have checked for DRY opportunities with other models and docs. *N/A*
- [ ] I've picked the right materialization for the affected models. *N/A*

# Other

- [ ] Check if a full-refresh is required after this PR is merged.

Remove temporary fields

Related work items: #20046

models/reporting/core/core__vr_check_in_cover.sql

@@ -34,9 +34,6 @@ select
     amount_without_taxes_in_txn_currency as amount_without_taxes_in_txn_currency,
     total_amount_in_gbp as total_amount_in_gbp,
     amount_without_taxes_in_gbp as amount_without_taxes_in_gbp,
-    total_amount_in_txn_currency as amount_in_txn_currency,  -- LEGACY
-    total_amount_in_gbp as amount_in_gbp,  -- LEGACY
-
     checkin_cover_limit_amount_local_curr as checkin_cover_limit_amount_local_curr,
     checkin_cover_limit_amount_in_gbp as checkin_cover_limit_amount_in_gbp
 from core__vr_check_in_cover

models/reporting/core/schema.yml

@@ -323,19 +323,29 @@ models:
         description: |
           The date at which the guest finished the guest journey.
 
-      - name: amount_in_txn_currency
+      - name: total_amount_in_txn_currency
         data_type: numeric
         description: |
           The amount paid by the guest for the check-in cover, in the currency 
-          in which the payment actually took place.
+          in which the payment actually took place. Tax inclusive.
+
+      - name: amount_without_taxes_in_txn_currency
+        data_type: numeric
+        description: |
+          The equivalent amount paid by the guest for the check-in cover, in the currency 
+          in which the payment actually took place, without taxes.
 
       - name: currency
         data_type: character varying
         description: The currency used by the guest for the payment.
 
-      - name: amount_in_gbp
+      - name: total_amount_in_gbp
         data_type: numeric
-        description: The amount paid by the guest, converted into GBP.
+        description: The amount paid by the guest, converted into GBP. Tax inclusive.
+
+      - name: amount_without_taxes_in_gbp
+        data_type: numeric
+        description: The equivalent amount paid by the guest, converted into GBP and without taxes.
 
       - name: payment_status
         data_type: character varying