Remove legacy_suite_test.go

All the tests use testenv. Remove legacy envtest suite_test.

Signed-off-by: Sunny <[email protected]>

go.sum

@@ -337,8 +337,6 @@ github.com/evanphx/json-patch v4.11.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQL
 github.com/exponent-io/jsonpath v0.0.0-20151013193312-d6023ce2651d/go.mod h1:ZZMPRZwes7CROmyNKgQzC3XPs6L/G2EJLHddWejkmf4=
 github.com/fatih/camelcase v1.0.0/go.mod h1:yN2Sb0lFhZJUdVvtELVWefmrXpuZESvPmqwoZc+/fpc=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
-github.com/fluxcd/image-reflector-controller/api v0.11.1 h1:8pmUKL7Pise0JOBFgqw7eWtOK/rs3HNibXqCK9aJ8LE=
-github.com/fluxcd/image-reflector-controller/api v0.11.1/go.mod h1:lgQHGFz29OHmDU5Jwg689C/M+P/f9ujt6NS0zCLT0BQ=
 github.com/fluxcd/image-reflector-controller/api v0.11.2-0.20210831115249-143780f2c726 h1:89YeDCClWTO1C7pnIglerukkp7Y4tjkkJLV05dCMFwQ=
 github.com/fluxcd/image-reflector-controller/api v0.11.2-0.20210831115249-143780f2c726/go.mod h1:ps3Y5hbIDt/e0nlsXGJzAZBf1RyI5i13ii4vdc5aZrI=
 github.com/fluxcd/pkg/apis/acl v0.0.1 h1:biCgZMjpDSv3Q4mZPikUJILx3t2MuNXR4Oa5jRQxaNQ=