[wallet] rpc: Drop misleading option

Github-Pull: #8581
Rebased-From: fab5ecb7719063aa72751df1258dfa4cf4a9a4a9

src/wallet/rpcdump.cpp

@@ -257,6 +257,7 @@ UniValue importprunedfunds(const UniValue& params, bool fHelp)
     if (!EnsureWalletIsAvailable(fHelp))
         return NullUniValue;
 
+    // 0.13.x: Silently accept up to 3 params, but ignore the third:
     if (fHelp || params.size() < 2 || params.size() > 3)
         throw runtime_error(
             "importprunedfunds\n"
@@ -264,7 +265,6 @@ UniValue importprunedfunds(const UniValue& params, bool fHelp)
             "\nArguments:\n"
             "1. \"rawtransaction\" (string, required) A raw transaction in hex funding an already-existing address in wallet\n"
             "2. \"txoutproof\"     (string, required) The hex output from gettxoutproof that contains the transaction\n"
-            "3. \"label\"          (string, optional) An optional label\n"
         );
 
     CTransaction tx;
@@ -277,10 +277,6 @@ UniValue importprunedfunds(const UniValue& params, bool fHelp)
     CMerkleBlock merkleBlock;
     ssMB >> merkleBlock;
 
-    string strLabel = "";
-    if (params.size() == 3)
-        strLabel = params[2].get_str();
-
     //Search partial merkle tree in proof for our transaction and index in valid block
     vector<uint256> vMatch;
     vector<unsigned int> vIndex;