Remove unused code in Persistence initializer

Classes/BITChannel.h

@@ -34,10 +34,8 @@ FOUNDATION_EXPORT char *BITSafeJsonEventsString;
  *  Reset BITSafeJsonEventsString so we can start appending JSON dictionaries.
  *
  *  @param item The telemetry object, which should be processed
- *
- *  @return YES if the item was successfully enqueued, no if an error occured or the data pipeline was saturated.
  */
-- (BOOL)enqueueTelemetryItem:(BITTelemetryData *)item;
+- (void)enqueueTelemetryItem:(BITTelemetryData *)item;
 
 @end
 

Classes/BITPersistence.m

@@ -36,13 +36,6 @@ static NSUInteger const BITDefaultFileCount = 50;
     _directorySetupComplete = NO; //will be set to true in createDirectoryStructureIfNeeded
 
     [self createDirectoryStructureIfNeeded];
-
-    NSString *directoryPath = [self folderPathForType:BITPersistenceTypeTelemetry];
-    NSError *error = nil;
-    NSArray<NSURL *> *fileNames = [[NSFileManager defaultManager] contentsOfDirectoryAtURL:[NSURL fileURLWithPath:directoryPath]
-                                                       includingPropertiesForKeys:@[NSURLNameKey]
-                                                                          options:NSDirectoryEnumerationSkipsHiddenFiles
-                                                                        error:&error];
   }
   return self;
 }