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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int CheckRetainBuffer(void)

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{

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	return 1;

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}

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void ValidateRetainBuffer(void)

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{

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}

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void InValidateRetainBuffer(void)

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{

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}

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void Retain(unsigned int offset, unsigned int count, void *p)

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{

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}

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void Remind(unsigned int offset, unsigned int count, void *p)

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{

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}