[keyserver] Remove extraneous verifyClientSupported calls

Summary:
In the past, we had calls to `validateInput` in each responder, which in turn calls `verifyClientSupported`. When the input did not need validation because there was no input, we would instead add direct calls to `verifyClientSupported`.

However, now `validateInput` is called implicitly before each responder. As such, `verifyClientSupported` is also called implicitly, and we don't need any explicit calls to it in responders.

Test Plan: Careful reading of the code. I think this change is relatively safe since I'm just removing a call that already occurs elsewhere

Reviewers: michal, marcin

Reviewed By: marcin

Subscribers: tomek, wyilio

Differential Revision: https://phab.comm.dev/D9581

Author: Ashoat

keyserver/src/responders/keys-responders.js

@@ -16,7 +16,6 @@ import { ServerError } from 'lib/utils/errors.js';
 import { tShape, tNull } from 'lib/utils/validation-utils.js';
 
 import { fetchSessionPublicKeys } from '../fetchers/key-fetchers.js';
-import { verifyClientSupported } from '../session/version.js';
 import type { Viewer } from '../session/viewer.js';
 import { fetchCallUpdateOlmAccount } from '../updaters/olm-account-updater.js';
 
@@ -63,11 +62,7 @@ function retrieveSessionInitializationKeysSet(
   return { identityKeys, oneTimeKey, prekey, prekeySignature };
 }
 
-async function getOlmSessionInitializationDataResponder(
-  viewer: Viewer,
-): Promise<GetOlmSessionInitializationDataResponse> {
-  await verifyClientSupported(viewer);
-
+async function getOlmSessionInitializationDataResponder(): Promise<GetOlmSessionInitializationDataResponse> {
   const {
     identityKeys: notificationsIdentityKeys,
     prekey: notificationsPrekey,

keyserver/src/responders/user-responders.js

@@ -120,7 +120,6 @@ import {
   createNewUserCookie,
   setNewSession,
 } from '../session/cookies.js';
-import { verifyClientSupported } from '../session/version.js';
 import type { Viewer } from '../session/viewer.js';
 import {
   accountUpdater,
@@ -176,9 +175,6 @@ async function passwordUpdateResponder(
 }
 
 async function sendVerificationEmailResponder(viewer: Viewer): Promise<void> {
-  if (!viewer.isSocket) {
-    await verifyClientSupported(viewer, viewer.platformDetails);
-  }
   await checkAndSendVerificationEmail(viewer);
 }
 
@@ -200,9 +196,6 @@ export const logOutResponseValidator: TInterface<LogOutResponse> =
   });
 
 async function logOutResponder(viewer: Viewer): Promise<LogOutResponse> {
-  if (!viewer.isSocket) {
-    await verifyClientSupported(viewer, viewer.platformDetails);
-  }
   if (viewer.loggedIn) {
     const [anonymousViewerData] = await Promise.all([
       createNewAnonymousCookie({