api/server: fix empty-lines (revive)

api/server/router/build/build_routes.go:239:32: empty-lines: extra empty line at the start of a block (revive)
    api/server/middleware/version.go:45:241: empty-lines: extra empty line at the end of a block (revive)
    api/server/router/swarm/helpers_test.go:11:44: empty-lines: extra empty line at the end of a block (revive)

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

api/server/middleware/version.go

@@ -61,5 +61,4 @@ func (v VersionMiddleware) WrapHandler(handler func(ctx context.Context, w http.
 		ctx = context.WithValue(ctx, httputils.APIVersionKey{}, apiVersion)
 		return handler(ctx, w, r, vars)
 	}
-
 }

api/server/router/build/build_routes.go

@@ -237,7 +237,6 @@ func (br *buildRouter) postBuild(ctx context.Context, w http.ResponseWriter, r *
 	defer func() { _ = output.Close() }()
 
 	errf := func(err error) error {
-
 		if httputils.BoolValue(r, "q") && notVerboseBuffer.Len() > 0 {
 			_, _ = output.Write(notVerboseBuffer.Bytes())
 		}

api/server/router/swarm/helpers_test.go

@@ -115,5 +115,4 @@ func TestAdjustForAPIVersion(t *testing.T) {
 	if len(spec.TaskTemplate.ContainerSpec.Ulimits) != 0 {
 		t.Error("Ulimits were not stripped from spec")
 	}
-
 }