remove unused code

.travis.yml

@@ -16,7 +16,8 @@ script:
   - test -z "$(gofmt -s -l . 2>&1 | grep -v vendor | tee /dev/stderr)"
   - golint -set_exit_status ./...
   - ineffassign ./
-  - megacheck -simple.exit-non-zero -unused.exit-non-zero ./
+  - megacheck -simple.exit-non-zero=true -staticcheck.exit-non-zero=true -unused.exit-non-zero=true ./
+  - megacheck -tests=false -simple.enabled=false -staticcheck.enabled=false -unused.exit-non-zero=true ./
   - go test -coverprofile .coverprofile
   - $GOPATH/bin/goveralls -v -coverprofile .coverprofile -service=travis-ci
 

loader.go

@@ -97,10 +97,6 @@ func containsURL(searchURL *pkgurl.URL, urls []pkgurl.URL) bool {
 	return false
 }
 
-func newClient() http.Client {
-	return http.Client{Transport: newTransport()}
-}
-
 func newTransport() *http.Transport {
 	transport := &http.Transport{
 		Proxy: http.ProxyFromEnvironment,

loader_test.go

@@ -213,14 +213,6 @@ func TestLoadURL_Relative(t *testing.T) {
 
 // --------
 
-func TestNewClient(t *testing.T) {
-	c := newClient()
-	assert.NotNil(t, c)
-	assert.NotNil(t, c.Transport)
-}
-
-// --------
-
 func TestLoadURLsRecursive_LoadError(t *testing.T) {
 	data, err := loadURLsRecursive(nil, url.URL{})
 	assert.NotNil(t, err)

merge.go

@@ -4,15 +4,6 @@ import (
 	"reflect"
 )
 
-func mergeAll(fromData ...interface{}) (interface{}, error) {
-	var toData interface{}
-	err := mergeTo(&toData, fromData...)
-	if err != nil {
-		return nil, err
-	}
-	return toData, nil
-}
-
 func mergeTo(toData interface{}, fromData ...interface{}) error {
 	for _, fromDatum := range fromData {
 		err := merge(toData, fromDatum)

merge_test.go

@@ -7,26 +7,6 @@ import (
 	"testing"
 )
 
-func TestMergeAll(t *testing.T) {
-	data1 := map[string]interface{}{"x": 1}
-	data2 := map[string]interface{}{"y": 1}
-	data, err := mergeAll(data1, data2)
-	assert.Nil(t, err)
-	assert.NotNil(t, data)
-	m := data.(map[string]interface{})
-	assert.NotNil(t, m)
-	assert.Contains(t, m, "x")
-	assert.Contains(t, m, "y")
-}
-
-func TestMergeAll_MergeToError(t *testing.T) {
-	data1 := map[string]interface{}{}
-	data2 := []interface{}{}
-	data, err := mergeAll(data1, data2)
-	assert.NotNil(t, err)
-	assert.Nil(t, data)
-}
-
 func TestMergeTo(t *testing.T) {
 	var toData interface{}
 	data1 := 1