fix: remove unnecessary error check for courseDetails in ScheduleAndDetails component

Author: bra-i-am

src/schedule-and-details/data/slice.test.js

@@ -145,7 +145,7 @@ const ScheduleAndDetails = () => {
     return <></>;
   }
 
-  if (courseDetails.isError || loadingSettingsStatus === RequestStatus.DENIED) {
+  if (loadingSettingsStatus === RequestStatus.DENIED) {
     return (
       <div className="row justify-content-center m-6">
         <Placeholder />