Simplify SVGTextQuery::modifyStartEndPositionsRespectingLigatures Blink Merge: https://src.chromium.org/viewvc/blink?view=revision&revision=177231
Committed 268751@main (006900da2e50): <https://commits.webkit.org/268751@main> Reviewed commits have been landed. Closing PR #18500 and removing active labels.
<rdar://problem/116369254>