fix: oauth/authorize and token showing error page

packages/backend/src/server/web/views/oauth.pug

@@ -1,9 +0,0 @@
-extends ./base
-
-block meta
-	//- Should be removed by the page when it loads, so that it won't needlessly
-	//- stay when user navigates away via the navigation bar
-	//- XXX: Remove navigation bar in auth page?
-	meta(name='misskey:oauth:transaction-id' content=transactionId)
-	meta(name='misskey:oauth:client-name' content=clientName)
-	meta(name='misskey:oauth:scope' content=scope)