fix(docs): fix FAssets redemption steps by removing approval mention (#751)

Author: fassko

docs/fassets/developer-guides/7-fassets-redeem.mdx

@@ -32,9 +32,8 @@ The following example demonstrates how to redeem FAssets using the `AssetManager
 ### Code Breakdown
 
 1. Define the asset manager contract address to interact with it.
-2. Approve FAssets (FXRP) tokens for redemption.
-3. Redeem the FAssets using the [`redeem`](/fassets/reference/IAssetManager#redeem) function by specifying the number of lots to redeem and the underlying chain address.
-4. Retrieve the asset manager settings to calculate the redeemed amount; for this, you need to obtain the `lotSizeAMG` and `assetDecimals` from the asset manager settings [document](/fassets/developer-guides/fassets-settings-solidity).
+2. Redeem the FAssets using the [`redeem`](/fassets/reference/IAssetManager#redeem) function by specifying the number of lots to redeem and the underlying chain address.
+3. Retrieve the asset manager settings to calculate the redeemed amount; for this, you need to obtain the `lotSizeAMG` and `assetDecimals` from the asset manager settings [document](/fassets/developer-guides/fassets-settings-solidity).
 
 :::info
 In this example, you are not using the executor vault address, but you can use it to redeem FAssets on behalf of another address.

examples/developer-hub-solidity/FAssetsRedeem.sol

@@ -17,12 +17,7 @@ contract FAssetsRedeem {
         fAssetToken = _fAssetToken;
     }
 
-    // 2. Approve FAssets for redemption
-    function approveFAssets(uint256 _amount) public returns (bool) {
-        return IERC20(fAssetToken).approve(address(this), _amount);
-    }
-
-    // 3. Redeem FAssets (requires prior approval)
+    // 2. Redeem FAssets (requires prior approval)
     function redeem(
         uint256 _lots,
         string memory _redeemerUnderlyingAddressString
@@ -47,7 +42,7 @@ contract FAssetsRedeem {
         return redeemedAmountUBA;
     }
 
-    // 4. Get the AssetManager settings
+    // 3. Get the AssetManager settings
     function getSettings()
         public
         view