Remove expr/stmt (#5857)

lib/packages/docutils/rstgen.nim

@@ -765,7 +765,7 @@ proc renderTocEntries*(d: var RstGenerator, j: var int, lvl: int,
     result.add(tmp)
 
 proc renderImage(d: PDoc, n: PRstNode, result: var string) =
-  template valid(s): expr =
+  template valid(s): bool =
     s.len > 0 and allCharsInSet(s, {'.','/',':','%','_','\\','\128'..'\xFF'} +
                                    Digits + Letters + WhiteSpace)
   let
@@ -1194,7 +1194,7 @@ proc defaultConfig*(): StringTableRef =
   ## ``rstToHtml`` to generate the bare minimum HTML.
   result = newStringTable(modeStyleInsensitive)
 
-  template setConfigVar(key, val: expr) =
+  template setConfigVar(key, val) =
     result[key] = val
 
   # If you need to modify these values, it might be worth updating the template