removing object utils, no longer used

src/adapter/services/LegacyPersistenceAdapter.js

@@ -20,8 +20,6 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 
-import objectUtils from 'objectUtils';
-
 export default class LegacyPersistenceAdapter {
     constructor(openmct) {
         this.openmct = openmct;
@@ -39,8 +37,11 @@ export default class LegacyPersistenceAdapter {
         return this.openmct.objects.save(legacyDomainObject.useCapability('adapter'));
     }
 
-    readObject(keystring) {
-        let identifier = objectUtils.parseKeyString(keystring);
+    readObject(space, key) {
+        const identifier = {
+            namespace: space,
+            key: key
+        };
 
         return this.openmct.legacyObject(this.openmct.objects.get(identifier));
     }