go.mod: remove direct testify reference w/ version

[riscdanger]

Hi, is it possible to remove the testify versions in the go.mod file? This prevents apps that use flect from specifying their own versions. My preference with go.mod is to specify versions in applications and not libraries.

Here is a comparison of go mod graph output:

github.com/OWNER/APP github.com/gobuffalo/[email protected]
github.com/gobuffalo/[email protected] github.com/stretchr/[email protected]
[email protected] [email protected]
github.com/stretchr/[email protected] github.com/davecgh/[email protected]
github.com/stretchr/[email protected] github.com/pmezard/[email protected]
github.com/stretchr/[email protected] github.com/stretchr/[email protected]
github.com/stretchr/[email protected] gopkg.in/[email protected]
gopkg.in/[email protected] gopkg.in/[email protected]
github.com/stretchr/[email protected] github.com/stretchr/[email protected]
github.com/stretchr/[email protected] github.com/davecgh/[email protected]
github.com/stretchr/[email protected] github.com/pmezard/[email protected]
github.com/stretchr/[email protected] github.com/stretchr/[email protected]
github.com/stretchr/[email protected] gopkg.in/[email protected]
github.com/stretchr/[email protected] github.com/davecgh/[email protected]
github.com/stretchr/[email protected] github.com/stretchr/[email protected]
github.com/stretchr/[email protected] github.com/davecgh/[email protected]
github.com/stretchr/[email protected] github.com/pmezard/[email protected]
github.com/stretchr/[email protected] github.com/stretchr/[email protected]
github.com/stretchr/[email protected] gopkg.in/[email protected]

Using my fork:

$ go mod graph
github.com/OWNER/APP github.com/riscdanger/[email protected]
github.com/OWNER/APP github.com/stretchr/[email protected]
github.com/OWNER/APP [email protected]
github.com/stretchr/[email protected] github.com/davecgh/[email protected]
github.com/stretchr/[email protected] github.com/pmezard/[email protected]
github.com/stretchr/[email protected] github.com/stretchr/[email protected]
github.com/stretchr/[email protected] gopkg.in/[email protected]
[email protected] [email protected]