Revert "Add missing braces around INVERTED TILE in masterwork tilesets and Obsidian Soul"

This reverts commit 96018cd07dd978f7a362cdee6f5f2ae70c1f2e8d.
Revert "Fix missing brackets on INVERTED_TILE tags"

This reverts commit 635a2320edeaa87dcc817ab38027a324ad285bae.