3365

Caching text line information slowed down TreeSheets, so revert the

changes.

This reverts commit ab2a042faec7ef6523944f2e5528c3c846bb433f.
This reverts commit 68245a8b3505fd90a4fafe0ec70311924cee1212.
This reverts commit 333313500038ea512e5e8787ac28ee419003b987.
This reverts commit 4036b27b2cbdc56de63264db5f01b78bcab3f42e.