Merge bitcoin/bitcoin#22432: doc: fix incorrect testmempoolaccept doc

9169be0 fix incorrect testmempoolaccept doc (glozow)

Pull request description:

  Sorry, I somehow missed this...

ACKs for top commit:
  jnewbery:
    Tested ACK 9169be0

Tree-SHA512: d44f81655669e338af298b7b5d616eb4ca15cbaac667c49251408cb92cee2fb9f440fcfbbac6a17744f24ceeafaf6cea6b9c49a37a464f7eaeeda6e655a56f7a

src/rpc/rawtransaction.cpp

@@ -894,8 +894,7 @@ static RPCHelpMan testmempoolaccept()
                 "\nThis checks if transactions violate the consensus or policy rules.\n"
                 "\nSee sendrawtransaction call.\n",
                 {
-                    {"rawtxs", RPCArg::Type::ARR, RPCArg::Optional::NO, "An array of hex strings of raw transactions.\n"
-            "                                        Length must be one for now.",
+                    {"rawtxs", RPCArg::Type::ARR, RPCArg::Optional::NO, "An array of hex strings of raw transactions.",
                         {
                             {"rawtx", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, ""},
                         },