Remove quietly parameter from Concast#removeObserver method.

I could swear I tried this before and it broke a bunch of tests, but
tests are passing without it.

src/core/ObservableQuery.ts

@@ -831,12 +831,9 @@ Did you mean to call refetch(variables) instead of refetch({ variables })?`);
 
     if (!useDisposableConcast) {
       // We use the {add,remove}Observer methods directly to avoid wrapping
-      // observer with an unnecessary SubscriptionObserver object, in part so
-      // that we can remove it here without triggering any unsubscriptions,
-      // because we just want to ignore the old observable, not prematurely shut
-      // it down, since other consumers may be awaiting this.concast.promise.
+      // observer with an unnecessary SubscriptionObserver object.
       if (this.concast && this.observer) {
-        this.concast.removeObserver(this.observer, true);
+        this.concast.removeObserver(this.observer);
       }
 
       this.concast = concast;

src/react/hoc/__tests__/queries/skip.test.tsx

@@ -670,7 +670,7 @@ describe('[queries] skip', () => {
                 break;
               case 4:
                 expect(this.props.skip).toBe(false);
-                expect(this.props.data!.loading).toBe(false);
+                expect(this.props.data!.loading).toBe(true);
                 expect(this.props.data.allPeople).toEqual(data.allPeople);
                 expect(ranQuery).toBe(2);
                 break;

src/utilities/observables/Concast.ts

@@ -130,23 +130,16 @@ export class Concast<T> extends Observable<T> {
     }
   }
 
-  public removeObserver(
-    observer: Observer<T>,
-    quietly?: boolean,
-  ) {
+  public removeObserver(observer: Observer<T>) {
     if (
       this.observers.delete(observer) &&
       this.observers.size < 1
     ) {
-      if (quietly) {
-        // In case there are still any listeners in this.nextResultListeners,
-        // and no error or completion has been broadcast yet, make sure those
-        // observers have a chance to run and then remove themselves from
-        // this.observers.
-        this.notify("complete");
-      } else {
-        this.handlers.complete();
-      }
+      // In case there are still any listeners in this.nextResultListeners, and
+      // no error or completion has been broadcast yet, make sure those
+      // observers have a chance to run and then remove themselves from
+      // this.observers.
+      this.handlers.complete();
     }
   }