Fix auth revocable docs (#777)

docs/tokens/stellar-asset-contract.mdx

@@ -119,12 +119,6 @@ Stellar classic, which you can learn more about [here](https://developers.stella
  `AUTHORIZED_FLAG` set.
  - A trustline balance can only be clawed back using the `clawback` contract
  function if the trustline has `TRUSTLINE_CLAWBACK_ENABLED_FLAG` set.
- - The admin can only deauthorize a trustline if the issuer of the asset has
- `AUTH_REVOCABLE_FLAG` set. The deauthorization will fail if the issuer is
- missing. Note that when a trustline is deauthorized from Soroban,
- `AUTHORIZED_FLAG` is cleared and
- `AUTHORIZED_TO_MAINTAIN_LIABILITIES_FLAG` is set to avoid having to pull
- offers and redeeming pool shares.
  - Transfers to the issuer account will burn the token, while transfers from
  the issuer account will mint.
  - Trustline balances are stored in a 64-bit signed integer even though the
@@ -134,8 +128,6 @@ Stellar classic, which you can learn more about [here](https://developers.stella
 - Using `Address::Contract`
  - The balance and authorization state will be stored in contract storage, as
  opposed to a trustline.
- - `AUTH_REVOCABLE_FLAG` is not required to be set on the issuer to deauthorize a
- balance.
  - Balances are stored in a 128-bit signed integer.
  - A balance can only be clawed back if the issuer account had the
  `AUTH_CLAWBACK_ENABLED_FLAG` set when the balance was created. A balance is
@@ -152,6 +144,16 @@ trustlines interact with the `AUTH_REQUIRED_FLAG` issuer flag, allowing asset is
 to have the same control in Soroban as they do in Stellar classic. Read more
 about `AUTH_REQUIRED_FLAG` [here](https://developers.stellar.org/docs/issuing-assets/control-asset-access#authorization-required-0x1).
 
+### Revoking Authorization
+
+The admin can only revoke authorization from an `Address`, if the issuer of the
+asset has `AUTH_REVOCABLE_FLAG` set. The deauthorization will fail if the issuer
+is missing. This requirement is true for both the trustline balances of
+`Address::Account` and contract balances of `Address:Contract`. Note that when a
+trustline is deauthorized from Soroban, `AUTHORIZED_FLAG` is cleared and
+`AUTHORIZED_TO_MAINTAIN_LIABILITIES_FLAG` is set to avoid having to pull offers
+and redeeming pool shares.
+
 ## Authorization semantics
 
 See the [authorization overview](../soroban-internals/authorization.mdx) and