fixing snapshot schema (#5507)

sql/moz-fx-data-shared-prod/braze_external/users_previous_day_snapshot_v1/schema.yaml

@@ -1,40 +0,0 @@
-fields:
-- mode: NULLABLE
-  name: external_id
-  type: STRING
-- mode: NULLABLE
-  name: email
-  type: STRING
-- mode: NULLABLE
-  name: mailing_country
-  type: STRING
-- mode: NULLABLE
-  name: email_subscribe
-  type: STRING
-- mode: NULLABLE
-  name: basket_token
-  type: STRING
-- mode: NULLABLE
-  name: email_lang
-  type: STRING
-- mode: NULLABLE
-  name: create_timestamp
-  type: TIMESTAMP
-- mode: NULLABLE
-  name: update_timestamp
-  type: TIMESTAMP
-- mode: NULLABLE
-  name: fxa_id_sha256
-  type: STRING
-- mode: NULLABLE
-  name: has_fxa
-  type: BOOLEAN
-- mode: NULLABLE
-  name: fxa_primary_email
-  type: STRING
-- mode: NULLABLE
-  name: fxa_lang
-  type: STRING
-- mode: NULLABLE
-  name: first_service
-  type: STRING

sql/moz-fx-data-shared-prod/braze_external/users_previous_day_snapshot_v2/schema.yaml

@@ -1,40 +0,0 @@
-fields:
-- mode: NULLABLE
-  name: external_id
-  type: STRING
-- mode: NULLABLE
-  name: email
-  type: STRING
-- mode: NULLABLE
-  name: mailing_country
-  type: STRING
-- mode: NULLABLE
-  name: email_subscribe
-  type: STRING
-- mode: NULLABLE
-  name: basket_token
-  type: STRING
-- mode: NULLABLE
-  name: email_lang
-  type: STRING
-- mode: NULLABLE
-  name: create_timestamp
-  type: TIMESTAMP
-- mode: NULLABLE
-  name: update_timestamp
-  type: TIMESTAMP
-- mode: NULLABLE
-  name: fxa_id_sha256
-  type: STRING
-- mode: NULLABLE
-  name: has_fxa
-  type: BOOLEAN
-- mode: NULLABLE
-  name: fxa_primary_email
-  type: STRING
-- mode: NULLABLE
-  name: fxa_lang
-  type: STRING
-- mode: NULLABLE
-  name: fxa_first_service
-  type: STRING