remove suppressions for sockets, it is fixed now

Author: kumaraditya303

Tools/tsan/suppressions_free_threading.txt

@@ -43,7 +43,6 @@ race_top:write_thread_id
 race_top:PyThreadState_Clear
 # Only seen on macOS, sample: https://gist.github.com/aisk/dda53f5d494a4556c35dde1fce03259c
 race_top:set_default_allocator_unlocked
-race_top:socket_socketpair
 race_top:_PyFrame_GetBytecode