Fix "[sanitizer_common] Support stripping interceptor prefixes in RenderFrame()"

RenderFrame() has several implementations, which was missed in
01cea39f8e11012ac96b36ef60bfaf2f3b64320b.

Fix the one in sanitizer_symbolizer_markup.cpp.

Reported-by: gulfem
GitOrigin-RevId: 150470a055d5c23b92de3f9110e5fd553aef19a0