Remove old Label extension references in test case 6

Author: duckontheweb

tests/data-files/catalogs/test-case-6/12cb17a8-ae08-469c-a2be-4d0619240014/400c22e3-5b54-438b-b600-5e9bd6d0a498/collection.json

@@ -7,13 +7,11 @@
     {
       "rel": "item",
       "href": "./3c67b59c-2e6f-47fb-ba3c-0dd106941096.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     },
     {
       "rel": "license",
-      "href": "http://www.apache.org/licenses/LICENSE-2.0",
-      "label:assets": []
+      "href": "http://www.apache.org/licenses/LICENSE-2.0"
     },
     {
       "rel": "root",
@@ -24,13 +22,10 @@
       "rel": "parent",
       "href": "../collection.json",
       "type": "application/json",
-      "title": "Layer Collection",
-      "label:assets": []
+      "title": "Layer Collection"
     }
   ],
-  "stac_extensions": [
-    "https://stac-extensions.github.io/label/v1.0.0/schema.json"
-  ],
+  "stac_extensions": [],
   "title": "Label Collection",
   "keywords": [],
   "version": "1",

tests/data-files/catalogs/test-case-6/12cb17a8-ae08-469c-a2be-4d0619240014/9420e0fd-3731-40e8-93ff-5b6ad0067048/collection.json

@@ -6,8 +6,7 @@
   "links": [
     {
       "rel": "license",
-      "href": "http://www.apache.org/licenses/LICENSE-2.0",
-      "label:assets": []
+      "href": "http://www.apache.org/licenses/LICENSE-2.0"
     },
     {
       "rel": "root",
@@ -18,67 +17,55 @@
       "rel": "parent",
       "href": "../collection.json",
       "type": "application/json",
-      "title": "Layer Collection",
-      "label:assets": []
+      "title": "Layer Collection"
     },
     {
       "rel": "item",
       "href": "./3bfb5bd3-5740-4ed0-92c9-968cc532dbc5.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     },
     {
       "rel": "item",
       "href": "./41c57cea-50ba-495c-9ee7-17ddba837380.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     },
     {
       "rel": "item",
       "href": "./4514bbc6-cd17-4c14-816d-1709dfc61079.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     },
     {
       "rel": "item",
       "href": "./52072b95-0275-4255-be5e-c567006f80cb.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     },
     {
       "rel": "item",
       "href": "./84fe42c0-9d23-404a-bd0f-1406112cca8c.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     },
     {
       "rel": "item",
       "href": "./884a939d-1d73-4351-9601-f9ee89a980b0.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     },
     {
       "rel": "item",
       "href": "./a6bd2ff9-3805-40ab-96fa-b7f112b18973.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     },
     {
       "rel": "item",
       "href": "./e40bb30d-0295-42ed-ba04-6cf563b057f9.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     },
     {
       "rel": "item",
       "href": "./eb1124cc-3b45-4487-bc2c-4855ac877ad9.json",
-      "type": "application/json",
-      "label:assets": []
+      "type": "application/json"
     }
   ],
-  "stac_extensions": [
-    "https://stac-extensions.github.io/label/v1.0.0/schema.json"
-  ],
+  "stac_extensions": [],
   "title": "Scene Collection",
   "keywords": [],
   "version": "1",