style: remove GoImports test
style: remove GoImports test

The GoImports test is slow and doesn't bring much to the table, given that we
run `gofmt` and the compiler should complain about incorrect imports.

maxlang/cockroach,glycerine/cockroach,maxlang/cockroach,veteranlu/cockroach,vaibhavarora/cockroach,veteranlu/cockroach,glycerine/cockroach,vaibhavarora/cockroach,petermattis/cockroach,maxlang/cockroach,cockroachdb/cockroach,paperstreet/cockroach,vaibhavarora/cockroach,maxlang/cockroach,glycerine/cockroach,vaibhavarora/cockroach,paperstreet/cockroach,vaibhavarora/cockroach,glycerine/cockroach,glycerine/cockroach,petermattis/cockroach,veteranlu/cockroach,veteranlu/cockroach,glycerine/cockroach,glycerine/cockroach,cockroachdb/cockroach,paperstreet/cockroach,veteranlu/cockroach,vaibhavarora/cockroach,cockroachdb/cockroach,petermattis/cockroach,petermattis/cockroach,petermattis/cockroach,paperstreet/cockroach,cockroachdb/cockroach,veteranlu/cockroach,maxlang/cockroach,maxlang/cockroach,cockroachdb/cockroach,petermattis/cockroach,paperstreet/cockroach,cockroachdb/cockroach,paperstreet/cockroach,veteranlu/cockroach,paperstreet/cockroach,vaibhavarora/cockroach,cockroachdb/cockroach,petermattis/cockroach,paperstreet/cockroach,maxlang/cockroach,petermattis/cockroach,cockroachdb/cockroach,vaibhavarora/cockroach,glycerine/cockroach,veteranlu/cockroach,maxlang/cockroach