replace more __WXDEBUG__ occurrences with wxDEBUG_LEVEL

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59725 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/unix/threadpsx.cpp

@@ -1624,7 +1624,6 @@ bool wxThread::TestDestroy()
 
 wxThread::~wxThread()
 {
-#ifdef __WXDEBUG__
     m_critsect.Enter();
 
     // check that the thread either exited or couldn't be created
@@ -1636,7 +1635,6 @@ wxThread::~wxThread()
     }
 
     m_critsect.Leave();
-#endif // __WXDEBUG__
 
     delete m_internal;