You can do this, and additionally you can write code to display attribution in a different location (following Esri guidelines for attribution) if that works better for your app. But before you do, you should work out if it's a legal licensing requirement to leave that in place, depending on your app and the data you show in your maps. I would suggest reading these help topics:
License your app—ArcGIS Runtime SDK for Android | ArcGIS for Developers - "Esri requires that when you use an ArcGIS Online basemap, Esri data services, or Esri API technology in your app you must also include Esri attribution."
Esri attribution | ArcGIS for Developers (linked from above topic) - Note that there's no sample for this in Android yet as far as I know but it will be something we'll be working on for a website update.
And the API ref call you use is on GeoView| arcgis-android .
Hope this helps,
Shelly
