message: Update eosio.system-reqauth-rc.md
  removed deprecated arbitration clauses
diff: # Action - `{{ reqauth }}`
  -This Contract is legally binding and can be used in the event of a dispute.
  -
  ### Description
  The `{{ reqauth }}` action...
  @@ -15,5 +13,3 @@ The `{{ reqauth }}` action requires the following `input` and `input type`:
  | `{{ reqauth }}` | `{{ fromVar }}` | `{{ account_name }}` |
  As an authorized party I {{ signer }} wish to UNKNOWN
  -
  -All disputes arising from this contract shall be resolved in the EOS Core Arbitration Forum.
  