Remove 'Roles' field from email template

Removed 'Roles' field from user invitation email template.

Signed-off-by: Emiliano Jankowski <ejankowski@gmail.com>

Author: mustela

config/email-templates/userinvitation-emailtemplate.yaml

@@ -348,9 +348,6 @@ spec:
   - name: "OrganizationDisplayName"
     required: true
     type: "string"
-  - name: "Roles"
-    required: true
-    type: "string"
   - name: "UserInvitationName"
     required: true
     type: "string"