Remove an unnecessary private field

src/OpenIddict.Core/Caches/OpenIddictApplicationCache.cs

@@ -23,7 +23,6 @@ namespace OpenIddict.Core
     {
         private readonly IMemoryCache _cache;
         private readonly IOpenIddictApplicationStore<TApplication> _store;
-        private readonly IOptionsMonitor<OpenIddictCoreOptions> _options;
 
         public OpenIddictApplicationCache(
             [NotNull] IOptionsMonitor<OpenIddictCoreOptions> options,
@@ -34,7 +33,6 @@ namespace OpenIddict.Core
                 SizeLimit = options.CurrentValue.EntityCacheLimit
             });
 
-            _options = options;
             _store = resolver.Get<TApplication>();
         }
 

src/OpenIddict.Core/Caches/OpenIddictAuthorizationCache.cs

@@ -23,7 +23,6 @@ namespace OpenIddict.Core
     {
         private readonly IMemoryCache _cache;
         private readonly IOpenIddictAuthorizationStore<TAuthorization> _store;
-        private readonly IOptionsMonitor<OpenIddictCoreOptions> _options;
 
         public OpenIddictAuthorizationCache(
             [NotNull] IOptionsMonitor<OpenIddictCoreOptions> options,
@@ -34,7 +33,6 @@ namespace OpenIddict.Core
                 SizeLimit = options.CurrentValue.EntityCacheLimit
             });
 
-            _options = options;
             _store = resolver.Get<TAuthorization>();
         }
 

src/OpenIddict.Core/Caches/OpenIddictScopeCache.cs

@@ -24,7 +24,6 @@ namespace OpenIddict.Core
     {
         private readonly IMemoryCache _cache;
         private readonly IOpenIddictScopeStore<TScope> _store;
-        private readonly IOptionsMonitor<OpenIddictCoreOptions> _options;
 
         public OpenIddictScopeCache(
             [NotNull] IOptionsMonitor<OpenIddictCoreOptions> options,
@@ -35,7 +34,6 @@ namespace OpenIddict.Core
                 SizeLimit = options.CurrentValue.EntityCacheLimit
             });
 
-            _options = options;
             _store = resolver.Get<TScope>();
         }
 

src/OpenIddict.Core/Caches/OpenIddictTokenCache.cs

@@ -23,7 +23,6 @@ namespace OpenIddict.Core
     {
         private readonly IMemoryCache _cache;
         private readonly IOpenIddictTokenStore<TToken> _store;
-        private readonly IOptionsMonitor<OpenIddictCoreOptions> _options;
 
         public OpenIddictTokenCache(
             [NotNull] IOptionsMonitor<OpenIddictCoreOptions> options,
@@ -34,7 +33,6 @@ namespace OpenIddict.Core
                 SizeLimit = options.CurrentValue.EntityCacheLimit
             });
 
-            _options = options;
             _store = resolver.Get<TToken>();
         }