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, 81 deletions

diff --git a/libs/usvfs/src/usvfs_dll/hookmanager.h b/libs/usvfs/src/usvfs_dll/hookmanager.h
deleted file mode 100644
index 636a29c..0000000
--- a/libs/usvfs/src/usvfs_dll/hookmanager.h
+++ /dev/null
@@ -1,81 +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 "hookcontext.h"
-#include <hooklib.h>
-#include <usvfsparameters.h>
-
-namespace usvfs
-{
-
-class HookManager
-{
-public:
-  HookManager(const usvfsParameters& params, HMODULE module);
-  ~HookManager();
-
-  HookManager(const HookManager& reference) = delete;
-
-  HookManager& operator=(const HookManager& reference) = delete;
-
-  static HookManager& instance();
-
-  HookContext* context() { return &m_Context; }
-
-  ///
-  /// \brief retrieve address of the detour of a function
-  /// \param functionName name of the function to look up
-  /// \return function address that can be used to directly execute the original code
-  ///
-  LPVOID detour(const char* functionName);
-
-  ///
-  /// \brief remove the hook on the specified function.
-  /// \param functionName name of the function to unhook
-  /// \note This function is only exposed to allow a workaround for ExitProcess and may
-  /// be
-  ///       removed if a better solution is found there. If you have another legit use
-  ///       case, please let me know!
-  ///
-  void removeHook(const std::string& functionName);
-
-private:
-  void logStubInt(LPVOID address);
-  static void logStub(LPVOID address);
-
-  void installHook(HMODULE module1, HMODULE module2, const std::string& functionName,
-                   LPVOID hook, LPVOID* fillFuncAddr);
-  void installStub(HMODULE module1, HMODULE module2, const std::string& functionName);
-  void initHooks();
-  void removeHooks();
-
-private:
-  static HookManager* s_Instance;
-
-  std::map<std::string, HookLib::HOOKHANDLE> m_Hooks;
-
-  std::map<LPVOID, std::string> m_Stubs;
-
-  HookContext m_Context;
-};
-
-}  // namespace usvfs