rpcrt4: Avoid a variable holding an ARRAY_SIZE result.

dlls/rpcrt4/rpc_transport.c

@@ -2403,12 +2403,11 @@ auth_schemes[] =
     { digestW,    ARRAYSIZE(digestW) - 1,    RPC_C_HTTP_AUTHN_SCHEME_DIGEST },
     { negotiateW, ARRAYSIZE(negotiateW) - 1, RPC_C_HTTP_AUTHN_SCHEME_NEGOTIATE }
 };
-static const unsigned int num_auth_schemes = sizeof(auth_schemes)/sizeof(auth_schemes[0]);
 
 static DWORD auth_scheme_from_header( const WCHAR *header )
 {
     unsigned int i;
-    for (i = 0; i < num_auth_schemes; i++)
+    for (i = 0; i < ARRAY_SIZE(auth_schemes); i++)
     {
         if (!strncmpiW( header, auth_schemes[i].str, auth_schemes[i].len ) &&
             (header[auth_schemes[i].len] == ' ' || !header[auth_schemes[i].len])) return auth_schemes[i].scheme;