Post #3582: 
Hi @SHEK,
Will fix in the next version.
Meanwhile, you can use empty text (text=""):
L.column().prop(C.scene.tool_settings, 'transform_pivot_point', text="", icon=icon, icon_value=icon_value)
Or select RMB Context menu > Pie Menu Editor > Add to ... > select some slot > Custom (Menu). Which will generate this code in Custom tab:
L.prop_menu_enum(C.scene.tool_settings, 'transform_pivot_point', text=text, icon=icon)
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