Small fixes based on harding's input

_includes/devdoc/bitcoin-core/rpcs/rpcs/getblockheader.md

@@ -63,11 +63,6 @@ The `getblockheader` RPC {{summary_getBlockHeader}}
   p: "Required<br>(exactly 1)"
   d: "The number of confirmations the transactions in this block have, starting at 1 when this block is at the tip of the best block chain.  This score will be -1 if the the block is not part of the best block chain"
 
-- n: "→<br>`size`"
-  t: "number (int)"
-  p: "Required<br>(exactly 1)"
-  d: "The size of this block in serialized block format, counted in bytes"
-
 - n: "→<br>`height`"
   t: "number (int)"
   p: "Required<br>(exactly 1)"

_includes/devdoc/bitcoin-core/rpcs/rpcs/listtransactions.md

@@ -1,4 +1,4 @@
-{% comment %}
+{% comment %}
 This file is licensed under the MIT License (MIT) available on
 http://opensource.org/licenses/MIT.
 {% endcomment %}
@@ -100,7 +100,7 @@ The `listtransactions` RPC {{summary_listTransactions}}
 - n: "→ →<br>`trusted`"
   t: "bool"
   p: "Optional<br>(0 or 1)"
-  d: "Indicates wether we consider the outputs of this unconfirmed transaction safe to spend"
+  d: "Indicates wether we consider the outputs of this unconfirmed transaction safe to spend.  The field is only visible for unconfirmed transactions."
 
 - n: "→ →<br>`generated`"
   t: "bool"