[css-grid] Revert early attempt at fixing baseline-alignment for items with circular sizing dependencies. Related to w3c#1365.

Author: tabatkins

css-grid-1/Overview.bs

@@ -3703,20 +3703,9 @@ Resolve Intrinsic Track Sizes</h3>
 			so that,
 			when start/end-aligned together
 			their [[css-align-3#baseline-values|baselines align as specified]].
-			An item whose size depends
-			on the size of the tracks they span in this axis
-			is ignored for the purpose of calculating such “shims”.
 
 			Consider these “shims” as part of the items’ intrinsic size contribution
 			for the purpose of track sizing, below.
-
-			<div class=example>
-				For example,
-				if several grid items with text and ''height: auto''
-				are baseline-aligned with an image with ''height: 100%'',
-				the image is ignored when calculating the shims that the other items will have.
-				(And the image itself will have no shim at all.)
-			</div>
 			</ins>
 
 		<li>