Remove :term: reference from 'free-threaded' (not in glossary)

Author: HernaniSamuel

Doc/c-api/unicode.rst

@@ -1754,7 +1754,7 @@ They all return ``NULL`` or ``-1`` if an exception occurs.
    You must keep a reference to the result to benefit from interning.
 
    .. note::
-      On the :term:`free-threaded` build, all interned strings are :term:`immortal`.
+      On the free-threaded build, all interned strings are :term:`immortal`.
       This may change in the future.
 
 .. c:function:: PyObject* PyUnicode_InternFromString(const char *str)

Doc/library/sys.rst

@@ -1326,7 +1326,7 @@ always available. Unless explicitly noted otherwise, all variables are read-only
    return value of :func:`intern` around to benefit from it.
 
    .. note::
-      On the :term:`free-threaded` build, all interned strings are :term:`immortal`.
+      On the free-threaded build, all interned strings are :term:`immortal`.
       This may change in the future.
 
 .. function:: _is_gil_enabled()