remove var

src/server/routes/page.js

@@ -222,7 +222,6 @@ module.exports = function(crowi, app) {
   function addRendarVarsForPage(renderVars, page) {
     renderVars.page = page;
     renderVars.revision = page.revision;
-    renderVars.author = page.revision.author;
     renderVars.pageIdOnHackmd = page.pageIdOnHackmd;
     renderVars.revisionHackmdSynced = page.revisionHackmdSynced;
     renderVars.hasDraftOnHackmd = page.hasDraftOnHackmd;