Merged PR 4223: Cleaned first time booked for deals

# Description

Cleaned first time booked for deals.
Removed fields from models that were previously using it and from schema

# Checklist

- [x] The edited models and dependants run properly with production data.
- [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.
- [ ] I've picked the right materialization for the affected models.

# Other

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

Cleaned first time booked for deals

Related work items: #27121

models/intermediate/kpis/int_kpis__agg_daily_deals.sql

@@ -16,7 +16,6 @@
         -- Metrics --
         sum(new_deals) as new_deals,
         sum(never_booked_deals) as never_booked_deals,
-        sum(first_time_booked_deals) as first_time_booked_deals,
         sum(active_deals) as active_deals,
         sum(churning_deals) as churning_deals,
         sum(inactive_deals) as inactive_deals,

models/intermediate/kpis/int_kpis__metric_daily_deals.sql

@@ -30,13 +30,6 @@ select
             when ldl.deal_lifecycle_state = '02-Never Booked' then ldl.id_deal else null
         end
     ) as never_booked_deals,
-    count(
-        distinct case
-            when ldl.deal_lifecycle_state = '03-First Time Booked'
-            then ldl.id_deal
-            else null
-        end
-    ) as first_time_booked_deals,
     count(
         distinct case
             when ldl.deal_lifecycle_state = '04-Active' then ldl.id_deal else null

models/intermediate/kpis/schema.yml

@@ -5078,11 +5078,6 @@ models:
         description: |
           Count of never booked deals in a given date and per specified dimension.
 
-      - name: first_time_booked_deals
-        data_type: bigint
-        description: |
-          Count of first-time booked deals in a given date and per specified dimension.
-
       - name: active_deals
         data_type: bigint
         description: |
@@ -5157,7 +5152,6 @@ models:
               metric_column_names:
                 - new_deals
                 - never_booked_deals
-                - first_time_booked_deals
                 - active_deals
                 - churning_deals
                 - inactive_deals
@@ -5212,11 +5206,6 @@ models:
         description: |
           Count of never booked deals for a given date, dimension and value.
 
-      - name: first_time_booked_deals
-        data_type: bigint
-        description: |
-          Count of first-time booked deals for a given date, dimension and value.
-
       - name: active_deals
         data_type: bigint
         description: |