Clean up things that include script/standard.h

Remove standard.h from files that don't use anything in it, and include
it in files that do.

src/rpc/mempool.cpp

@@ -17,7 +17,6 @@
 #include <rpc/server.h>
 #include <rpc/server_util.h>
 #include <rpc/util.h>
-#include <script/standard.h>
 #include <txmempool.h>
 #include <univalue.h>
 #include <util/fs.h>

src/rpc/output_script.cpp

@@ -13,7 +13,6 @@
 #include <script/descriptor.h>
 #include <script/script.h>
 #include <script/signingprovider.h>
-#include <script/standard.h>
 #include <tinyformat.h>
 #include <univalue.h>
 #include <util/check.h>

src/rpc/util.cpp

@@ -12,6 +12,7 @@
 #include <rpc/util.h>
 #include <script/descriptor.h>
 #include <script/signingprovider.h>
+#include <script/standard.h>
 #include <tinyformat.h>
 #include <util/check.h>
 #include <util/result.h>

src/rpc/util.h

@@ -5,6 +5,7 @@
 #ifndef BITCOIN_RPC_UTIL_H
 #define BITCOIN_RPC_UTIL_H
 
+#include <addresstype.h>
 #include <node/transaction.h>
 #include <outputtype.h>
 #include <protocol.h>
@@ -13,7 +14,6 @@
 #include <rpc/request.h>
 #include <script/script.h>
 #include <script/sign.h>
-#include <script/standard.h>
 #include <univalue.h>
 #include <util/check.h>