[css-anchor-position] Remove the logical props; their grammars are already defined in reference to one of the physical props.

Author: tabatkins

css-anchor-position-1/Overview.bs

@@ -786,7 +786,7 @@ The ''anchor()'' function resolves to a <<length>>.
 It is only valid to be used in the [=inset properties=].
 
 <pre class="propdef partial">
-Name: top, left, right, bottom, inset-block-start, inset-block-end, inset-inline-start, inset-inline-end
+Name: top, left, right, bottom
 New values: <<anchor()>>
 </pre>
 
@@ -1317,7 +1317,7 @@ The ''anchor-size()'' Function {#anchor-size-fn}
 ------------------------------
 
 <pre class="propdef partial">
-Name: width, height, inline-size, block-size, min-width, min-height, min-inline-size, min-block-size, max-width, max-height, max-inline-size, max-block-size
+Name: width, height, min-width, min-height, max-width, max-height
 New values:	<<anchor-size()>>
 </pre>