Timeout while changing avatar without internet connection

Description:

When editing the profile, users have to wait for the "Loading suggestions..." timeout to change their avatar, even if the option "Accounts_SetDefaultAvatar" is disabled.

Server Setup Information:

• Version of Rocket.Chat Server: 0.62.1
• Operating System: Debian
• Deployment Method(snap/docker/tar/etc): Tar
• Number of Running Instances: 3
• DB Replicaset Oplog: Enabled
• Node Version: 8.9.3
• mongoDB Version: 3.2.12

Steps to Reproduce:

1. Disable the Internet connection or block gravatar.com on the rocketChat server
   $ sudo iptables -A OUTPUT -d 192.0.73.2 -j DROP
2. Edit user profil in RocketChat

Expected behavior:

Do not try to contact gravatar.com when "Accounts_SetDefaultAvatar" is disabled or anything else that allow changing avatar without to wait for the timeout.

Actual behavior:

Users have to wait the timeout to gravatar.com to change their avatar

Relevant logs:

Mar 13 10:04:27 srv-01 nodejs-rocketchat0[26280]: rocketchat_logger rocketchat_logger.js:278 #033[34mMeteor ➔ method#033[39m getAvatarSuggestion -> userId: c8P5ygFNHtd2a4qDz , arguments: {}

The issue names the getAvatarSuggestion method and the Accounts_SetDefaultAvatar setting; start by tracing those references through the profile avatar flow. Reproduce with gravatar.com blocked or without an internet connection. Done means the disabled setting no longer triggers a Gravatar request or timeout, while users can still change their avatar.