Remove preload support from the MemoryCache

sky/engine/core/fetch/FetchRequest.cpp

Index: sky/engine/core/fetch/FetchRequest.cpp
diff --git a/sky/engine/core/fetch/FetchRequest.cpp b/sky/engine/core/fetch/FetchRequest.cpp
index 7980ddfd36faa86e9f9c2be2de3b8811c04869dc..4c20082cd7a8e323cff334f9b0b302a3b19f435b 100644
--- a/sky/engine/core/fetch/FetchRequest.cpp
+++ b/sky/engine/core/fetch/FetchRequest.cpp
@@ -35,7 +35,6 @@ FetchRequest::FetchRequest(const ResourceRequest& resourceRequest, const AtomicS
     , m_charset(charset)
     , m_options(ResourceFetcher::defaultResourceOptions())
     , m_priority(priority)
-    , m_forPreload(false)
     , m_defer(NoDefer)
     , m_originRestriction(UseDefaultOriginRestrictionForType)
 {
@@ -46,7 +45,6 @@ FetchRequest::FetchRequest(const ResourceRequest& resourceRequest, const AtomicS
     : m_resourceRequest(resourceRequest)
     , m_options(options)
     , m_priority(ResourceLoadPriorityUnresolved)
-    , m_forPreload(false)
     , m_defer(NoDefer)
     , m_originRestriction(UseDefaultOriginRestrictionForType)
 {
@@ -57,7 +55,6 @@ FetchRequest::FetchRequest(const ResourceRequest& resourceRequest, const FetchIn
     : m_resourceRequest(resourceRequest)
     , m_options(ResourceFetcher::defaultResourceOptions())
     , m_priority(ResourceLoadPriorityUnresolved)
-    , m_forPreload(false)
     , m_defer(NoDefer)
     , m_originRestriction(UseDefaultOriginRestrictionForType)
 {