[API] Remove atributo do FormField

Api/CompetitionAdm.yaml

@@ -327,7 +327,6 @@ paths:
   /subscription/submissions:
     get:
       tags:
-        - public
         - subscription
       summary: Retrieves all submissions for this competition
       description: Retrieves all submissions for this competition.
@@ -344,6 +343,7 @@ paths:
                     - $ref: 'https://gitlab.dev.evologica.com.br/Competify/Docs/raw/master/Api/components/schemas.yaml/#/TeamSubscriptionSubmission'
     post:
       tags:
+        - public
         - subscription
       summary: Creates a submission for the competition
       description: Creates a new submission for the competition.

Api/components/schemas/Subscription.yaml

@@ -102,7 +102,6 @@ FormTemplate:
 FormField:
   required:
     - label
-    - key
     - removable
     - required
     - type
@@ -110,8 +109,6 @@ FormField:
   properties:
     label:
       type: string
-    key:
-      type: string
     type:
       type: string
       enum: