Remove vendored usvfs and Windows-only usvfs code paths

The Linux port uses its own in-process FUSE VFS (FuseConnector), so
usvfs was dead weight: libs/usvfs/ was never built, usvfsconnector.cpp
was explicitly REMOVE_ITEM'd from the source list, and every call site
was already guarded by #ifdef _WIN32 with a working Linux branch (the
Windows build is also broken on this branch, since FUSE3 is a hard
find_package dependency).

- Drop libs/usvfs/ and src/src/usvfsconnector.{cpp,h}
- Collapse #ifdef _WIN32 / usvfs include branches in organizercore,
  mainwindow, settings, util, spawn
- Remove getUsvfsVersionString() and the "usvfs: ..." log field
- Remove vfs32/64DLLName APPPARAMs (nothing reads them)
- Relabel About dialog "usvfs:" row to "VFS: FUSE 3"

1 files changed, 0 insertions, 105 deletions

diff --git a/libs/usvfs/src/shared/shmlogger.h b/libs/usvfs/src/shared/shmlogger.h
deleted file mode 100644
index 158f941..0000000
--- a/libs/usvfs/src/shared/shmlogger.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
-Userspace Virtual Filesystem
-
-Copyright (C) 2015 Sebastian Herbord. All rights reserved.
-
-This file is part of usvfs.
-
-usvfs is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-usvfs is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with usvfs. If not, see <http://www.gnu.org/licenses/>.
-*/
-#pragma once
-
-#include <spdlog/details/null_mutex.h>
-#include <spdlog/sinks/base_sink.h>
-
-#include "logging.h"
-#include "shared_memory.h"
-#include "windows_sane.h"
-
-typedef boost::interprocess::message_queue_t<usvfs::shared::VoidPointerT>
-    message_queue_interop;
-
-namespace usvfs::sinks
-{
-class shm_sink : public spdlog::sinks::base_sink<spdlog::details::null_mutex>
-{
-public:
-  shm_sink(const char* queueName);
-
-protected:
-  void sink_it_(const spdlog::details::log_msg& msg) override;
-  void output(spdlog::level::level_enum lev, const std::string& message);
-  void flush_() override;
-
-private:
-  message_queue_interop m_LogQueue;
-  std::atomic<int> m_DroppedMessages;
-};
-
-}  // namespace usvfs::sinks
-
-class SHMLogger
-{
-public:
-  static const size_t MESSAGE_COUNT = 1024;
-  static const size_t MESSAGE_SIZE  = 512;
-
-  static SHMLogger& create(const char* instanceName);
-  static SHMLogger& open(const char* instanceName);
-  static void free();
-
-  static bool isInstantiated() { return s_Instance != nullptr; }
-
-  static inline SHMLogger& instance()
-  {
-    if (s_Instance == nullptr) {
-      throw std::runtime_error("shm logger not instantiated");
-    }
-
-    return *s_Instance;
-  }
-
-  void log(LogLevel logLevel, const std::string& message);
-  bool tryGet(char* buffer, size_t bufferSize);
-  void get(char* buffer, size_t bufferSize);
-
-private:
-  struct owner_t
-  {};
-  static owner_t owner;
-
-  struct client_t
-  {};
-  static client_t client;
-
-private:
-  SHMLogger(owner_t, const std::string& instanceName);
-  SHMLogger(client_t, const std::string& instanceName);
-
-  SHMLogger(const SHMLogger&)            = delete;
-  SHMLogger& operator=(const SHMLogger&) = delete;
-
-  ~SHMLogger();
-
-private:
-  static SHMLogger* s_Instance;
-
-  message_queue_interop m_LogQueue;
-
-  std::string m_SHMName;
-  std::string m_LockName;
-  std::string m_QueueName;
-
-  std::atomic<int> m_DroppedMessages;
-};