fix json API parsing

src/app/dars/services/api.service.ts

@@ -38,9 +38,7 @@ export class DarsApiService {
     _emplid: number,
   ): Observable<StudentDegreeProgram[]> {
     const url = `${environment.apiDarsUrl}/studentplans`;
-    return this.http
-      .get<string>(url, HTTP_OPTIONS)
-      .pipe(map(JSON.parse.bind(JSON)));
+    return this.http.get<StudentDegreeProgram[]>(url, HTTP_OPTIONS);
   }
 
   /**
@@ -48,9 +46,7 @@ export class DarsApiService {
    */
   public getAudits(): Observable<AuditMetadata[]> {
     const url = `${environment.apiDarsUrl}/auditmetadata`;
-    return this.http
-      .get<string>(url, HTTP_OPTIONS)
-      .pipe(map(JSON.parse.bind(JSON)));
+    return this.http.get<AuditMetadata[]>(url, HTTP_OPTIONS);
   }
 
   /**