Remove dropdown arrow from AutoCompleteTextView

I want to remove dropdown arrow which is created by AutoCompleteTextView when I use TextInputLayout and use Style: ExposedDropdownMenu

Below is my code:

<com.google.android.material.textfield.TextInputLayout
        android:layout_marginTop="10dp"
        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.ExposedDropdownMenu"
        android:hint="Marital Status"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:boxStrokeColor="@color/colorPrimaryDark">

        <AutoCompleteTextView
            android:background="@null"
            android:focusable="false"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/edt_marital" />
    </com.google.android.material.textfield.TextInputLayout>

If you would like to avoid the dropdown icon just use the app:endIconMode attribute.

<com.google.android.material.textfield.TextInputLayout
      style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.ExposedDropdownMenu"
      app:endIconMode="none"
      ...>

Before and after: