Remove unused LDAPberval helper functions

LDAPberval_from_object(), LDAPberval_from_object_check(), and
LDAPberval_release() were introduced in 20bee65 but never used.

Signed-off-by: Christian Heimes <cheimes@redhat.com>

Modules/berval.c

@@ -3,73 +3,6 @@
 #include "common.h"
 #include "berval.h"
 
-/*
- * Converts a Python object into a data for a berval structure.
- *
- * New memory is allocated, and the content of the object is copied into it.
- * Then the (pre-existing) berval structure's field are filled in with pointer
- * and length data.
- *
- * The source object must implement the buffer interface, or be None.
- * If the source object is None, bv->bv_val will be set to NULL and bv_len to 0.
- * Otherwise, bv->bv_val will be non-NULL (even for zero-length data).
- * This allows the caller to distinguish a None argument as something special.
- *
- * Returns 0 on failure, leaving *bv unchanged, and setting an error.
- * Returns 1 on success: the berval must be freed with LDAPberval_release().
- */
-int
-LDAPberval_from_object(PyObject *obj, struct berval *bv)
-{
-    const void *data;
-    char *datacp;
-    Py_ssize_t len;
-
-    if (PyNone_Check(obj)) {
-        bv->bv_len = 0;
-        bv->bv_val = NULL;
-        return 1;
-    }
-
-    if (!PyObject_AsReadBuffer(obj, &data, &len))
-        return 0;
-
-    datacp = PyMem_MALLOC(len ? len : 1);
-    if (!datacp) {
-        PyErr_NoMemory();
-        return 0;
-    }
-    memcpy(datacp, data, len);
-
-    bv->bv_len = len;
-    bv->bv_val = datacp;
-    return 1;
-}
-
-/*
- * Returns true if the object could be used to initialize a berval structure
- * with LDAPberval_from_object()
- */
-int
-LDAPberval_from_object_check(PyObject *obj)
-{
-    return PyNone_Check(obj) ||
-           PyObject_CheckReadBuffer(obj);
-}
-
-/*
- * Releases memory allocated by LDAPberval_from_object().
- * Has no effect if the berval pointer is NULL or the berval data is NULL.
- */
-void
-LDAPberval_release(struct berval *bv) {
-    if (bv && bv->bv_val) {
-        PyMem_FREE(bv->bv_val);
-        bv->bv_len = 0;
-        bv->bv_val = NULL;
-    }
-}
-
 /*
  * Copies out the data from a berval, and returns it as a new Python object,
  * Returns None if the berval pointer is NULL.

Modules/berval.h

@@ -6,9 +6,6 @@
 #include "common.h"
 #include "lber.h"
 
-int  LDAPberval_from_object(PyObject *obj, struct berval *bv);
-int  LDAPberval_from_object_check(PyObject *obj);
-void LDAPberval_release(struct berval *bv);
 PyObject *LDAPberval_to_object(const struct berval *bv);
 PyObject *LDAPberval_to_unicode_object(const struct berval *bv);