Remove last go get from the e2e-test-yaml
Remove last go get from the e2e-test-yaml

Following commit 2af394cc0d7c60beb3c9c055c95241d32c4e2674 there was a `go
get` left which wasnt removed.

Since we have it in vendor directory we don't need to donwload it again.

Signed-off-by: Chmouel Boudjnah <62677a06b3e78665bfcc28953f542f81f478cf54@redhat.com>

tektoncd/pipeline,tektoncd/pipeline