Cleanup and preparation for further refinements, such as new types

of notifications that could be created.

Simplified/NSDate+NYPLDateAdditions.h

@@ -5,8 +5,6 @@
 
 + (NSDate *)dateWithISO8601DateString:(NSString *)string;
 
-+ (BOOL)isTimeOneDayLeft:(NSDate *)date;
-
 - (NSString *)RFC3339String;
 
 - (NSString *)shortTimeUntilString;

Simplified/NSDate+NYPLDateAdditions.m

@@ -38,23 +38,6 @@ + (NSDate *)dateWithISO8601DateString:(NSString *const)string
   return date;
 }
 
-+ (BOOL)isTimeOneDayLeft:(NSDate *)date
-{
-  BOOL oneDayLeft = NO;
-  NSInteger oneDayHours = 24;
-
-  // time interval between now and a future date, in seconds
-  NSTimeInterval seconds = [date timeIntervalSinceDate:[NSDate date]];
-  seconds = seconds > 0 ? seconds : 0;
-  long minutes = seconds / 60;
-  long hours = minutes / 60;
-
-  if (hours <= oneDayHours) {
-    oneDayLeft = YES;
-  }
-  return oneDayLeft;
-}
-
 - (NSString *)RFC3339String
 {
   NSDateFormatter *const dateFormatter = [[NSDateFormatter alloc] init];

Simplified/NYPLAppDelegate.m

@@ -1,6 +1,4 @@
 @import NYPLAudiobookToolkit;
-@import NotificationCenter;
-@import UserNotifications;
 
 #import "SimplyE-Swift.h"