remove deprecated ntcp options

Signed-off-by: R4SAS <r4sas@i2pmail.org>

docs/user-guide/configuration.md

@@ -37,7 +37,6 @@ If you are upgrading your very old router (< 2.3.0) see also [this](config_opts_
 Available options
 -----------------
 
-
 Run `./i2pd --help` to show builtin help message (default value of option will be shown in braces)
 
 ### General options
@@ -216,9 +215,6 @@ Option                                 | Description
 -------------------------------------- | --------------------------------------
 limits.transittunnels                  | Override maximum number of transit tunnels. 2500 by default
 limits.openfiles                       | Limit number of open file descriptors (0 - use system limit)
-limits.coresize                        | Maximum size of corefile in Kb (0 - use system limit) 
-limits.ntcpsoft                        | Threshold to start probabalistic backoff with ntcp sessions (0 - use system limit) 
-limits.ntcphard                        | Maximum number of ntcp sessions (0 - use system limit) 
 
 ### Trust options
 
@@ -275,4 +271,4 @@ Local addressbook
 
 There is also a special addressbook config file in the working directory at `addressbook/local.csv`.
 It lets your routers to work as a resolver for 3ld domains if you run that 2ld address on your router and it' presented in addressbook.
-Only i2pd can resolve such addresses, but sending special datagram requests.
+Only i2pd can resolve such addresses, by sending special datagram requests.