fix doubling search results in Search Result Panel

After fix local search in SFC POU in 163d3a8, search results tree assemble with "children" branches: results of search in actions anf transitions. Deleted code doubling this search results into one more separate branch, so it's useless.

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<?xml version='1.0' encoding='utf-8'?>

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<BeremizRoot URI_location="LOCAL://">

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  <TargetType/>

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</BeremizRoot>