Start using auto-vendoring in the server repo

Description

With Go 1.14 (https://tip.golang.org/doc/go1.14#go-command), it now automatically checks for the existence of a vendor directory. So there is no need to explicitly set the `-mod=vendor` flag.

QA Test Steps

Run make-build-linux, make run-server and some other general Makefile command which execute go commands, and ensure that dependencies are not downloaded. They should just be used from the vendor directory.

Mana

3

Assignee

Agniva De Sarker

QA Assignee

Joseph Baylon

Reporter

Agniva De Sarker

Epic Link

None

Fix versions

Mattermost Team

Platform

Sprint

None

Labels

None

QA Testing Areas

Other (write in QA test steps)

GitHub Issue

None

Components

None
Configure