remove view extension from example

Author: matthewhanson

examples/item-nsl.json

@@ -1,7 +1,6 @@
 {
   "stac_version": "1.0.0",
   "stac_extensions": [
-    "view",
     "https://stac-extensions.github.io/storage/v1.0.0/schema.json"
   ],
   "id": "20190822T183518Z_746_POM1_ST2_P",
@@ -46,7 +45,6 @@
     "platform": "SWIFT_2",
     "instrument": "POM_1",
     "gsd": 0.20000000298023224,
-    "view:off_nadir": 9.42326831817627,
     "storage:min_tier_duration": 0,
     "storage:max_tier_duration": 90,
     "storage:archived": true