[TYPO3-core] Indexed Search cleanup

[Michael Stucki]

Hi Martin,

> Fine

Committed.

> BTW, does main() need all of them?
> 
> $SOBE,$BE_USER,$LANG,$BACK_PATH,$TCA_DESCR,$TCA,$CLIENT,$TYPO3_CONF_VARS

I had a look and think that only $LANG and $TYPO3_CONF_VARS are needed.
However I'm not sure whether global variables are inherited to child
functions. Are they? If not, you have my go to change this.

- michael
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