refactor(translation): use type assertion if Sprintf is not needed

internal/translate/apertium/translator.go

@@ -69,8 +69,7 @@ func (t *Translator) Translate(message string) (translation *core.Translation, e
 		))
 	}
 
-	translation.TEXT = fmt.Sprintf("%v",
-		data["responseData"].(map[string]interface{})["translatedText"])
+	translation.TEXT = data["responseData"].(map[string]interface{})["translatedText"].(string)
 
 	return translation, nil
 }

internal/translate/argos/translator.go

@@ -3,7 +3,6 @@ package argos
 import (
 	"encoding/json"
 	"errors"
-	"fmt"
 	"io/ioutil"
 	"net/http"
 	"net/url"
@@ -60,7 +59,7 @@ func (t *Translator) Translate(message string) (translation *core.Translation, e
 		return nil, errors.New("Translation not found")
 	}
 
-	translation.TEXT = fmt.Sprintf("%v", data["translatedText"])
+	translation.TEXT = data["translatedText"].(string)
 
 	return translation, nil
 }

internal/translate/bing/translator.go

@@ -122,8 +122,8 @@ func (t *Translator) Translate(message string) (translation *core.Translation, e
 	}
 
 	// translation
-	translation.TEXT = fmt.Sprintf("%v",
-		data[0].(map[string]interface{})["translations"].([]interface{})[0].(map[string]interface{})["text"])
+	translation.TEXT =
+		data[0].(map[string]interface{})["translations"].([]interface{})[0].(map[string]interface{})["text"].(string)
 
 	// request part of speech
 	userData.Del("fromLang")

internal/translate/google/translator.go

@@ -68,7 +68,7 @@ func (t *Translator) Translate(message string) (translation *core.Translation, e
 	// translation = data[0]
 	for _, line := range data[0].([]interface{}) {
 		translatedLine := line.([]interface{})[0]
-		translation.TEXT += fmt.Sprintf("%v", translatedLine)
+		translation.TEXT += translatedLine.(string)
 	}
 	// part of speech = data[1]
 	if data[1] != nil {

internal/translate/reverso/translator.go

@@ -86,7 +86,7 @@ func (t *Translator) Translate(message string) (translation *core.Translation, e
 
 	// translation
 	for _, line := range data["translation"].([]interface{}) {
-		translation.TEXT += fmt.Sprintf("%v", line)
+		translation.TEXT += line.(string)
 	}
 	// definition and part of speech
 	if data["contextResults"] != nil {