feat(android): ota: Remove apex_manifest_pb2 from update_engine

In Android 15, apex_manifest_pb2 no longer exists.
It's not needed to sucessfully generate an update configuration.

Drop it from the docs.

Reported-by: Maxime Fournier <[email protected]>
Signed-off-by: Mattijs Korpershoek <[email protected]>

Author: Mattijs Korpershoek

source/devices/AM62PX/android/Application_Notes_OTA.rst

@@ -64,8 +64,6 @@ OTA via Update Engine
       .. code-block:: console
 
          $ cd $ANDROID_BUILD_TOP
-         $ apex_manifest_pb2_path=$(find out -name 'apex_manifest_pb2.py' -print -quit)
-         $ PYTHONPATH=$ANDROID_BUILD_TOP/$(dirname ${apex_manifest_pb2_path}):$PYTHONPATH
          $ PYTHONPATH=$ANDROID_BUILD_TOP/build/make/tools/releasetools:$PYTHONPATH
          $ PYTHONPATH=$ANDROID_BUILD_TOP/system/apex/apexer/:$PYTHONPATH
          $ export PYTHONPATH

source/devices/AM62X/android/Application_Notes_OTA.rst

@@ -64,8 +64,6 @@ OTA via Update Engine
       .. code-block:: console
 
          $ cd $ANDROID_BUILD_TOP
-         $ apex_manifest_pb2_path=$(find out -name 'apex_manifest_pb2.py' -print -quit)
-         $ PYTHONPATH=$ANDROID_BUILD_TOP/$(dirname ${apex_manifest_pb2_path}):$PYTHONPATH
          $ PYTHONPATH=$ANDROID_BUILD_TOP/build/make/tools/releasetools:$PYTHONPATH
          $ PYTHONPATH=$ANDROID_BUILD_TOP/system/apex/apexer/:$PYTHONPATH
          $ export PYTHONPATH