Remove default Impeller meta-data from Android config

Eliminates the pre-configured 'io.flutter.embedding.android.EnableImpeller' meta-data from both the CLI implementation and documentation, reflecting updated defaults for Android publishing.

Author: FeodorFitsner

sdk/python/packages/flet-cli/src/flet_cli/commands/flutter_base.py

@@ -908,7 +908,7 @@ def setup_template_data(self):
             "android.software.leanback": False,
             "android.hardware.touchscreen": False,
         }
-        android_meta_data = {"io.flutter.embedding.android.EnableImpeller": "false"}
+        android_meta_data = {}
 
         # merge values from "--permissions" arg:
         for p in (

sdk/python/packages/flet/docs/publish/android.md

@@ -375,10 +375,6 @@ And it will be translated accordingly into this in the `AndroidManifest.xml`:
 </application>
 ```
 
-Below are default/pre-configured meta-data:
-
-- `"io.flutter.embedding.android.EnableImpeller" = false`
-
 ### Features
 
 A hardware or software feature that is used by the application.