fix ssl_session memory leak.
fix ssl_session memory leak.

libimobiledevice-win32/libimobiledevice,libimobiledevice-win32/libplist,libimobiledevice/libplist,libimobiledevice-win32/libplist,Tatsh/libimobiledevice,kalev/libimobiledevice,libimobiledevice-win32/libplist,libimobiledevice/libimobiledevice,kalev/libimobiledevice,libimobiledevice-win32/libimobiledevice,Tatsh/libimobiledevice,upbit/libimobiledevice,Tatsh/libimobiledevice,Tatsh/libplist,Tatsh/libplist,patweb/libimobiledevice,patweb/libimobiledevice,upbit/libimobiledevice,libimobiledevice/libplist,upbit/libimobiledevice,Tatsh/libimobiledevice,kalev/libimobiledevice,libimobiledevice-win32/libplist,libimobiledevice/libplist,libimobiledevice-win32/libimobiledevice,libimobiledevice/libimobiledevice,libimobiledevice-win32/libimobiledevice,Tatsh/libplist,patweb/libimobiledevice,Tatsh/libplist