Revert "レイアウトマージン設定"

This reverts commit c7a387df3d.

component/scanner/src/main/res/layout/list_item_scanner_component_manager_stub.xml

@@ -3,8 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_margin="24px">
+    android:layout_height="wrap_content">
 
     <ImageView
         android:id="@+id/imageViewResult"