Question: Im running an j2me app on android.
Im aware that form runs in fullscreen, but since on android all actions are in menu i would like to get rid of the action buttons on form.

How can i do that?

Answer: 
You should write a native Android app. Running J2ME apps on Android is never a good idea:

* they are not native, so they won't "feel right"
* you will not be able to use a lot of the goodies the platform offers you (such as the menu button)
* the interface will most probably look a bit bodged
* J2ME apps are harder to debug
* you might even run into performance issues

Try porting your J2ME app to the Android SDK. Keep only the non-interface stuff (any calculations, api libs, etc.) and rewrite the interface stuff using the Android SDK. It's a bit more work, but it will be completely worth it.
You can use an automatic conversion tool from J2ME to Android. UpOnTek provides an automatic conversion tool, which includes optimization tips for the app. Take a look at www.UpOnTek.com or contact michal.geva@UpOnTek.com for more details.