fix(PLATFORM-10832): remove dead code to fix reflection exception

[mmeller-wikia]

https://fandom.atlassian.net/browse/PLATFORM-10832

[mmeller-wikia]

To be double-checked: Based on REL1_39 code

usingdata/src/UsingDataHooks.php

Lines 60 to 92 in ee99692

	private function getDataFrame( $sourcePage, $title, &$parser, $frame ) {
	global $wgHooks;
	if ( !isset( $this->dataFrames[$sourcePage] ) ) {
	$this->dataFrames[$sourcePage] = new UsingDataPPFrameDOM( $frame, $sourcePage );
	if ( $sourcePage != ''
	&& ( $sourcePage != $parser->getTitle()->getPrefixedText() )
	|| $parser->getOptions()->getIsSectionPreview() ) {
	[ $text, $fTitle ] = $parser->fetchTemplateAndTitle( $title );
	if ( is_object( $fTitle ) && $fTitle->getPrefixedText() != $sourcePage ) {
	$this->dataFrames[$fTitle->getPrefixedText()] = $this->dataFrames[$sourcePage];
	}
	if ( is_string( $text ) && $text != '' ) {
	$this->searchingForData = true;
	$clearStateHooks = $wgHooks['ParserClearState'];
	// Other extensions tend to assume the hook is only called by wgParser and reset internal state
	$wgHooks['ParserClearState'] = [];
	$subParser = clone $parser;
	$subParser->preprocess( $text, $fTitle, clone $parser->getOptions() );
	// We might've blocked access to templates while preprocessing; should not be cached
	$subParser->clearState();
	if ( $parser->getOutput()->hasText() ) {
	$subParser->getOutput()->setText( $parser->getOutput()->getText() );
	}
	$wgHooks['ParserClearState'] = empty( $wgHooks['ParserClearState'] )
	? $clearStateHooks
	: array_merge( $clearStateHooks, $wgHooks['ParserClearState'] );
	$parser->mPPNodeCount += $subParser->mPPNodeCount;
	$this->searchingForData = false;
	}
	}
	}
	return $this->dataFrames[$sourcePage];
	}

Basically, this part could be removed https://github.com/Wikia/usingdata/blob/ee996924d65b057abce474d4b03e56f74ea0f977/src/UsingDataHooks.php#L71C5-L88C6

// This flag is restored at the end
					$this->searchingForData = true;
// Preserve ParserClearState hook handlers to be restored at the end
					$clearStateHooks = $wgHooks['ParserClearState'];
					// Other extensions tend to assume the hook is only called by wgParser and reset internal state
// Disable ParserClearState hook
					$wgHooks['ParserClearState'] = [];
// Cloning original parser state
					$subParser = clone $parser;
// We are working on clone and parameters are not passed as reference. No side-effects except some hooks being called. Hooks registered in UsingData doesn't preserve it's state outside affected parser
					$subParser->preprocess( $text, $fTitle, clone $parser->getOptions() );
					// We might've blocked access to templates while preprocessing; should not be cached
// Clearing state will set internal `mPPNodeCount` to `0`
					$subParser->clearState();
					if ( $parser->getOutput()->hasText() ) {
// $subParser is not used after that assignment
						$subParser->getOutput()->setText( $parser->getOutput()->getText() );
					}
// Restore original ParserClearState hook handlers
					$wgHooks['ParserClearState'] = empty( $wgHooks['ParserClearState'] )
						? $clearStateHooks
						: array_merge( $clearStateHooks, $wgHooks['ParserClearState'] );
// When calling $subParser->clearState(); mPPNodeCount is set to 0
					$parser->mPPNodeCount += $subParser->mPPNodeCount;
// Restore flag value
					$this->searchingForData = false;