core: hle: Remove global HLE lock.

- This was added early on as a hack to protect against some concurrency issues.
- It's not clear that this serves any purpose anymore, and if it does, individual components should be fixed rather than using a global recursive mutex.

src/core/hle/service/bcat/backend/backend.cpp

@@ -6,7 +6,6 @@
 #include "common/logging/log.h"
 #include "core/core.h"
 #include "core/hle/kernel/k_event.h"
-#include "core/hle/lock.h"
 #include "core/hle/service/bcat/backend/backend.h"
 
 namespace Service::BCAT {
@@ -29,10 +28,6 @@ DeliveryCacheProgressImpl& ProgressServiceBackend::GetImpl() {
     return impl;
 }
 
-void ProgressServiceBackend::SetNeedHLELock(bool need) {
-    need_hle_lock = need;
-}
-
 void ProgressServiceBackend::SetTotalSize(u64 size) {
     impl.total_bytes = size;
     SignalUpdate();
@@ -88,12 +83,7 @@ void ProgressServiceBackend::FinishDownload(ResultCode result) {
 }
 
 void ProgressServiceBackend::SignalUpdate() {
-    if (need_hle_lock) {
-        std::lock_guard lock(HLE::g_hle_lock);
-        update_event->GetWritableEvent().Signal();
-    } else {
-        update_event->GetWritableEvent().Signal();
-    }
+    update_event->GetWritableEvent().Signal();
 }
 
 Backend::Backend(DirectoryGetter getter) : dir_getter(std::move(getter)) {}

src/core/hle/service/bcat/backend/backend.h

@@ -71,10 +71,6 @@ class ProgressServiceBackend {
 public:
     ~ProgressServiceBackend();
 
-    // Clients should call this with true if any of the functions are going to be called from a
-    // non-HLE thread and this class need to lock the hle mutex. (default is false)
-    void SetNeedHLELock(bool need);
-
     // Sets the number of bytes total in the entire download.
     void SetTotalSize(u64 size);
 
@@ -109,7 +105,6 @@ private:
 
     DeliveryCacheProgressImpl impl{};
     Kernel::KEvent* update_event;
-    bool need_hle_lock = false;
 };
 
 // A class representing an abstract backend for BCAT functionality.

src/core/hle/service/nfp/nfp.cpp

@@ -9,7 +9,6 @@
 #include "core/core.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/k_event.h"
-#include "core/hle/lock.h"
 #include "core/hle/service/nfp/nfp.h"
 #include "core/hle/service/nfp/nfp_user.h"
 
@@ -337,7 +336,6 @@ void Module::Interface::CreateUserInterface(Kernel::HLERequestContext& ctx) {
 }
 
 bool Module::Interface::LoadAmiibo(const std::vector<u8>& buffer) {
-    std::lock_guard lock{HLE::g_hle_lock};
     if (buffer.size() < sizeof(AmiiboFile)) {
         return false;
     }