Remove support for BOOST_AC_USE_PTHREADS

Author: pdimov

include/boost/smart_ptr/detail/atomic_count.hpp

@@ -51,9 +51,6 @@
 #elif defined( BOOST_AC_USE_STD_ATOMIC )
 # include <boost/smart_ptr/detail/atomic_count_std_atomic.hpp>
 
-#elif defined( BOOST_AC_USE_PTHREADS )
-# include <boost/smart_ptr/detail/atomic_count_pt.hpp>
-
 #elif defined( BOOST_SP_DISABLE_THREADS )
 # include <boost/smart_ptr/detail/atomic_count_nt.hpp>
 

include/boost/smart_ptr/detail/deprecated_macros.hpp

@@ -33,7 +33,7 @@ BOOST_PRAGMA_MESSAGE("The macro BOOST_AC_USE_SPINLOCK has been deprecated in 1.8
 
 #if defined(BOOST_AC_USE_PTHREADS)
 
-BOOST_PRAGMA_MESSAGE("The macro BOOST_AC_USE_PTHREADS has been deprecated in 1.87 and support for it will be removed.")
+BOOST_PRAGMA_MESSAGE("The macro BOOST_AC_USE_PTHREADS has been deprecated in 1.87 and support for it was removed in 1.90.")
 
 #endif