Issue #11634: Remove misleading paragraph from a comment

Objects/stringobject.c

@@ -32,10 +32,6 @@ static PyObject *interned;
 #define PyStringObject_SIZE (offsetof(PyStringObject, ob_sval) + 1)
 
 /*
-   For both PyString_FromString() and PyString_FromStringAndSize(), the
-   parameter `size' denotes number of characters to allocate, not counting any
-   null terminating character.
-
    For PyString_FromString(), the parameter `str' points to a null-terminated
    string containing exactly `size' bytes.
 
@@ -52,8 +48,8 @@ static PyObject *interned;
 
    The PyObject member `op->ob_size', which denotes the number of "extra
    items" in a variable-size object, will contain the number of bytes
-   allocated for string data, not counting the null terminating character.  It
-   is therefore equal to the equal to the `size' parameter (for
+   allocated for string data, not counting the null terminating character.
+   It is therefore equal to the `size' parameter (for
    PyString_FromStringAndSize()) or the length of the string in the `str'
    parameter (for PyString_FromString()).
 */