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, 112 deletions

diff --git a/libs/usvfs/src/usvfs_dll/hookcallcontext.cpp b/libs/usvfs/src/usvfs_dll/hookcallcontext.cpp
deleted file mode 100644
index 32510c9..0000000
--- a/libs/usvfs/src/usvfs_dll/hookcallcontext.cpp
+++ /dev/null
@@ -1,112 +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/>.
-*/
-#include "hookcallcontext.h"
-#include "hookcontext.h"
-#include <logging.h>
-
-namespace usvfs
-{
-
-class HookStack
-{
-public:
-  static HookStack& instance()
-  {
-    PreserveGetLastError boostChangesGetLastError;
-    if (s_Instance.get() == nullptr) {
-      s_Instance.reset(new HookStack());
-    }
-    return *s_Instance.get();
-  }
-
-  bool setGroup(MutExHookGroup group)
-  {
-    if (m_ActiveGroups.test(static_cast<size_t>(group)) ||
-        m_ActiveGroups.test(static_cast<size_t>(MutExHookGroup::ALL_GROUPS))) {
-      return false;
-    } else {
-      m_ActiveGroups.set(static_cast<size_t>(group), true);
-      return true;
-    }
-  }
-
-  void unsetGroup(MutExHookGroup group)
-  {
-    m_ActiveGroups.set(static_cast<size_t>(group), false);
-  }
-
-private:
-  HookStack() {}
-
-private:
-  static boost::thread_specific_ptr<HookStack> s_Instance;
-  std::bitset<static_cast<size_t>(MutExHookGroup::LAST)> m_ActiveGroups;
-};
-
-boost::thread_specific_ptr<HookStack> HookStack::s_Instance;
-
-HookCallContext::HookCallContext() : m_Active(true), m_Group(MutExHookGroup::NO_GROUP)
-{
-  updateLastError();
-}
-
-HookCallContext::HookCallContext(MutExHookGroup group)
-    : m_Active(HookStack::instance().setGroup(group)), m_Group(group)
-{
-  updateLastError();
-}
-
-HookCallContext::~HookCallContext()
-{
-  if (m_Active && (m_Group != MutExHookGroup::NO_GROUP)) {
-    HookStack::instance().unsetGroup(m_Group);
-  }
-  SetLastError(m_LastError);
-}
-
-void HookCallContext::restoreLastError()
-{
-  SetLastError(m_LastError);
-}
-
-void HookCallContext::updateLastError(DWORD lastError)
-{
-  m_LastError = lastError;
-}
-
-bool HookCallContext::active() const
-{
-  return m_Active;
-}
-
-FunctionGroupLock::FunctionGroupLock(MutExHookGroup group) : m_Group(group)
-{
-  m_Active = HookStack::instance().setGroup(m_Group);
-}
-
-FunctionGroupLock::~FunctionGroupLock()
-{
-  if (m_Active) {
-    HookStack::instance().unsetGroup(m_Group);
-  }
-}
-
-}  // namespace usvfs