Updated API from documentation release

Author: ct-sdks[bot]

api-specs/api/types/product/ProductDraft.raml

@@ -25,7 +25,6 @@ properties:
 
       This field is optional for backwards compatibility reasons, but we strongly recommend setting it. Keys are mandatory for importing Products with the [Import API](/../api/import-export/overview) and the [Merchant Center](/../merchant-center/import-data).
 
-      To update a Product using the Import API or Merchant Center, the Product `key` must match the pattern `^[A-Za-z0-9_-]{2,256}$`.
   description?:
     type: LocalizedString
     description: |

api-specs/import/types/product-draft-import.raml

@@ -19,7 +19,6 @@ types:
       key:
         type: string
         description: User-defined unique identifier. If a [Product](ctp:api:type:Product) with this `key` exists, it is updated with the imported data.
-        pattern: ^[A-Za-z0-9_-]+$
         minLength: 2
         maxLength: 256
       productType:

api-specs/import/types/product-import.raml

@@ -67,7 +67,6 @@ types:
       key:
         type: string
         description: User-defined unique identifier. If a [Product](ctp:api:type:Product) with this `key` exists, it is updated with the imported data.
-        pattern: ^[A-Za-z0-9_-]+$
         minLength: 2
         maxLength: 256
       name: