docs: update readme

Author: uerceg

README.md

@@ -263,7 +263,6 @@ As of v4.22.0, the Adjust SDK supports install tracking on Huawei devices with H
 
 Select your project in the Project Navigator. In the left hand side of the main view, select your target. In the tab `Build Phases`, expand the group `Link Binary with Libraries`. On the bottom of that section click on the `+` button. Select below mentioned frameworks and make sure to change the `Status` of frameworks to `Optional`. Adjust SDK uses these frameworks with following purpose:
 
-* `iAd.framework` - to support Apple Search Ads campaigns
 * `AdServices.framework` - to support Apple Search Ads campaigns
 * `AdSupport.framework` - to read iOS Advertising Id (IDFA) value
 * `StoreKit.framework` - to communicate with `SKAdNetwork` framework