Make golang::setup-env turn on workspaces

Both GO111MODULE and GOWORK default to on, so this just unsets them.  We
could set them to explicit values but this seems equivalent and cleaner.

hack/lib/golang.sh

@@ -582,8 +582,9 @@ kube::golang::setup_env() {
   # Cross-compiles will not work with it set.
   unset GOBIN
 
-  # Explicitly turn on modules.
-  export GO111MODULE=on
+  # Turn on modules and workspaces (both are default-on).
+  unset GO111MODULE
+  unset GOWORK
 
   # This may try to download our specific Go version.  Do it last so it uses
   # the above-configured environment.

hack/lint-dependencies.sh

@@ -25,10 +25,6 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-# Set the Go environment, otherwise we get "can't compute 'all' using the
-# vendor directory".
-export GOWORK=off
-export GOFLAGS=-mod=mod
 # Detect problematic GOPROXY settings that prevent lookup of dependencies
 if [[ "${GOPROXY:-}" == "off" ]]; then
   kube::log::error "Cannot run with \$GOPROXY=off"
@@ -38,6 +34,11 @@ fi
 kube::golang::setup_env
 kube::util::require-jq
 
+# Set the Go environment, otherwise we get "can't compute 'all' using the
+# vendor directory".
+export GOWORK=off
+export GOFLAGS=-mod=mod
+
 # let us log all errors before we exit
 rc=0
 

hack/pin-dependency.sh

@@ -25,17 +25,18 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
+# Detect problematic GOPROXY settings that prevent lookup of dependencies
+if [[ "${GOPROXY:-}" == "off" ]]; then
+  kube::log::error "Cannot run with \$GOPROXY=off"
+  exit 1
+fi
+
 kube::golang::setup_env
 kube::util::require-jq
 
 # Explicitly set GOFLAGS to ignore vendor, since GOFLAGS=-mod=vendor breaks dependency resolution while rebuilding vendor
 export GOWORK=off
 export GOFLAGS=-mod=mod
-# Detect problematic GOPROXY settings that prevent lookup of dependencies
-if [[ "${GOPROXY:-}" == "off" ]]; then
-  kube::log::error "Cannot run with \$GOPROXY=off"
-  exit 1
-fi
 
 dep="${1:-}"
 sha="${2:-}"

test/e2e/dra/README.md

@@ -41,8 +41,6 @@ $ kind create cluster --config test/e2e/dra/kind.yaml --image dra/node:latest
 
 - Build ginkgo
 
-> NB: If you are using go workspace you must disable it `GOWORK=off make ginkgo`
-
 ```bash
 $ make ginkgo
 ```