docs: update RPC server documentation, add missing methods

And drop doc.go from server package as it duplicates docs/rpc.md and has no
value of its own (TODO list is managed with GitHub issues, really). Also, RPC
server is not really expected to be used by non-neo-go packages (contrary to
the client).

docs/rpc.md

@@ -42,7 +42,9 @@ which would yield the response:
 | `getblock` | Yes |
 | `getblockcount` | Yes |
 | `getblockhash` | Yes |
+| `getblockheader` | No (#711) |
 | `getblocksysfee` | Yes |
+| `getclaimable` | Yes |
 | `getconnectioncount` | Yes |
 | `getcontractstate` | Yes |
 | `getnep5balances` | No (#498) |
@@ -51,8 +53,11 @@ which would yield the response:
 | `getrawmempool` | Yes |
 | `getrawtransaction` | Yes |
 | `getstorage` | Yes |
+| `gettransactionheight` | No (#713) |
 | `gettxout` | Yes |
+| `getunclaimed` | No (#712) |
 | `getunspents` | Yes |
+| `getvalidators` | No (#714) |
 | `getversion` | Yes |
 | `invoke` | Yes |
 | `invokefunction` | Yes |
@@ -61,6 +66,27 @@ which would yield the response:
 | `submitblock` | No (#344) |
 | `validateaddress` | Yes |
 
+### Unsupported methods
+
+Methods listed down below are not going to be supported for various reasons
+and we're not accepting issues related to them.
+
+| Method  | Reason |
+| ------- | ------------|
+| `claimgas` | Doesn't fit neo-go wallet model, use CLI to do that |
+| `dumpprivkey` | Shouldn't exist for security reasons, see `claimgas` comment also |
+| `getbalance` | Use `getaccountstate` instead, see `claimgas` comment also |
+| `getmetricblocktimestamp` | Not really useful, use other means for node monitoring |
+| `getnewaddress` | See `claimgas` comment |
+| `getunclaimedgas` | Use `getunclaimed` instead, see `claimgas` comment also |
+| `getwalletheight` | Not applicable to neo-go, see `claimgas` comment |
+| `importprivkey` | Not applicable to neo-go, see `claimgas` comment |
+| `listaddress` | Not applicable to neo-go, see `claimgas` comment |
+| `listplugins` | neo-go doesn't have any plugins, so it makes no sense |
+| `sendfrom` | Not applicable to neo-go, see `claimgas` comment |
+| `sendmany` | Not applicable to neo-go, see `claimgas` comment |
+| `sendtoaddress` | Not applicable to neo-go, see `claimgas` comment |
+
 #### Implementation notices
 
 ##### `invokefunction` and `invoke`

pkg/rpc/server/doc.go

@@ -1,48 +0,0 @@
-/*
-Package server implements NEO-specific JSON-RPC 2.0 server.
-This package is currently in alpha and is subject to change.
-
-Server
-
-The server is written to support as much of the JSON-RPC 2.0 Spec as possible.
-The server is run as part of the node currently.
-
-TODO:
-	Implement HTTPS server.
-	Add remaining methods (Documented below).
-	Add Swagger spec and test using dredd in circleCI.
-
-Example call
-
-An example would be viewing the version of the node:
-
-	$ curl -X POST -d '{"jsonrpc": "2.0", "method": "getversion", "params": [], "id": 1}' http://localhost:20332
-
-which would yield the response:
-
-	{
-	  "jsonrpc" : "2.0",
-	    "id" : 1,
-	    "result" : {
-	      "port" : 20333,
-	      "useragent" : "/NEO-GO:0.36.0-dev/",
-	      "nonce" : 9318417
-	    }
-	}
-
-Unsupported methods
-
-	getblocksysfee
-	getcontractstate (needs to be implemented in pkg/core/blockchain.go)
-	getrawmempool (needs to be implemented on in pkg/network/server.go)
-	getrawtransaction (needs to be implemented in pkg/core/blockchain.go)
-	getstorage (lacks VM functionality)
-	gettxout (needs to be implemented in pkg/core/blockchain.go)
-	invoke (lacks VM functionality)
-	invokefunction (lacks VM functionality)
-	invokescript (lacks VM functionality)
-	sendrawtransaction (needs to be implemented in pkg/core/blockchain.go)
-	submitblock (needs to be implemented in pkg/core/blockchain.go)
-
-*/
-package server