util: Get rid of virStringListLen()

It does exactly the same thing as virStringListLength() and it's used in
one place only.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

src/util/virpolkit.c

@@ -90,7 +90,7 @@ int virPolkitCheckAuth(const char *actionid,
                           "start-time", "t", startTime,
                           "uid", "i", (int)uid,
                           actionid,
-                          virStringListLen(details) / 2,
+                          virStringListLength(details) / 2,
                           details,
                           allowInteraction,
                           "" /* cancellation ID */) < 0)

src/util/virstring.c

@@ -208,20 +208,6 @@ virStringFreeListCount(char **strings,
 }
 
 
-size_t virStringListLen(const char **strings)
-{
-    size_t i = 0;
-
-    if (!strings)
-        return 0;
-
-    while (strings[i] != NULL)
-        i++;
-
-    return i;
-}
-
-
 bool
 virStringArrayHasString(char **strings, const char *needle)
 {

src/util/virstring.h

@@ -44,8 +44,6 @@ char *virStringJoin(const char **strings,
 void virStringFreeList(char **strings);
 void virStringFreeListCount(char **strings, size_t count);
 
-size_t virStringListLen(const char **strings);
-
 bool virStringArrayHasString(char **strings, const char *needle);
 char *virStringGetFirstWithPrefix(char **strings, const char *prefix)
     ATTRIBUTE_NONNULL(2);