Migrate bom command to use a Go workspace

Remove `GOFLAGS=-mod=mod` from the execution of
license-bill-of-materials.

Signed-off-by: Ivan Valdes <[email protected]>

Author: ivanvc

scripts/test.sh

@@ -519,7 +519,7 @@ function bom_pass {
   # BOM file should be generated for linux. Otherwise running this command on other operating systems such as OSX
   # results in certain dependencies being excluded from the BOM file, such as procfs. 
   # For more info, https://github.com/etcd-io/etcd/issues/19665
-  output=$(GOOS=linux GOFLAGS=-mod=mod run_go_tool github.com/appscodelabs/license-bill-of-materials \
+  output=$(GOOS=linux run_go_tool github.com/appscodelabs/license-bill-of-materials \
     --override-file ./bill-of-materials.override.json \
     "${modules[@]}")
   code="$?"

scripts/updatebom.sh

@@ -30,7 +30,7 @@ function bom_fixlet {
   # BOM file should be generated for linux. Otherwise running this command on other operating systems such as OSX
   # results in certain dependencies being excluded from the BOM file, such as procfs. 
   # For more info, https://github.com/etcd-io/etcd/issues/19665
-  if GOOS=linux GOFLAGS=-mod=mod run_go_tool "github.com/appscodelabs/license-bill-of-materials" \
+  if GOOS=linux run_go_tool "github.com/appscodelabs/license-bill-of-materials" \
       --override-file ./bill-of-materials.override.json \
       "${modules[@]}" > ./bill-of-materials.json.tmp; then
     cp ./bill-of-materials.json.tmp ./bill-of-materials.json