Collections: Additional fixes

- Remove unused requirement
- Direct link to part 1 Landing Page req. class in recommendation
- Fix collections-list-describedby req. id

collections/clause_8_collections.adoc

@@ -48,7 +48,7 @@ include::requirements/collections/REQ_collections-collections-list-links.adoc[]
 
 Additional information may be available to assist in understanding and using this dataset. Links to those resources should be provided as well.
 
-include::recommendations/collections/REC_collections-describedby.adoc[]
+include::recommendations/collections/REC_collections-collections-list-describedby.adoc[]
 
 The `collections` property of the Collections response provides a description of each individual collection hosted by the API.
 

collections/recommendations/collections/REC_collections-describedby.adoc → collections/recommendations/collections/REC_collections-collections-list-describedby.adoc

@@ -1,7 +1,7 @@
-[[rec_collections_describedby]]
+[[rec_collections_collections-list-describedby]]
 [width="90%",cols="2,6a"]
 |===
-^|*Recommendation {counter:rec-id}* |*/rec/collections/describedby*
+^|*Recommendation {counter:rec-id}* |*/rec/collections/collections-list-describedby*
 ^|A |If external schemas or descriptions exist that provide additional information about the structure or semantics for the resource, a `200`-response SHOULD include links to each of those resources in the `links` property of the response (relation: `describedby`).
 ^|B |The `type` link parameter SHOULD be provided for each link. This applies to resources that describe the whole dataset.
 |===

collections/recommendations/collections/REC_collections-part1-landing-page.adoc

@@ -2,5 +2,5 @@
 [width="90%",cols="2,6a"]
 |===
 ^|*Recommendation {counter:rec-id}* |*/rec/collections/rec-part1-landing-page*
-^|A |An implementation of the `/Collections` Requirements Class SHOULD also implement the `Landing Page` Conformance Class defined in OGC API - Common Part 1.
+^|A |An implementation of the `/Collections` Requirements Class SHOULD also implement the http://www.opengis.net/spec/ogcapi-common-1/1.0/req/landing-page[_Landing Page_ Conformance Class] defined in OGC API - Common Part 1: Core.
 |===