rm reference to email

Author: Hongze Xia

README.md

@@ -79,7 +79,6 @@ POST `http://localhost:8080/create`
 	"expectedPrice": "$120.49",
 	"name": "Braun Thermoscan 7 IRT 6520",
 	"options": {
-		"email": "user@gmail.com"
 	}
 }
 ```
@@ -104,7 +103,6 @@ POST `http://localhost:8080/update`
 {
 	"key": "EhcKDHByaWNlLXRyYWNrcxCAgICgpPOTCa",
 	"options": {
-		"email": "user@gmail.com"
 	}
 }
 ```

email/client.go

@@ -30,9 +30,6 @@ func MakeUpdate(client *pushover.Client) echo.HandlerFunc {
 		if req.Options.AlertType != "" {
 			entity.Options.AlertType = req.Options.AlertType
 		}
-		if req.Options.Email != "" {
-			entity.Options.Email = req.Options.Email
-		}
 		if req.Options.CheckFreq != 0 {
 			entity.Options.CheckFreq = req.Options.CheckFreq
 		}

handlers/update.go

@@ -5,7 +5,6 @@ import "cloud.google.com/go/datastore"
 type (
 	// Options is the options for an entry
 	Options struct {
-		Email      string  `json:"email"`
 		CheckFreq  int16   `json:"checkFreq"` // in minutes
 		AlertType  string  `json:"alertType"`
 		Threshold  float32 `json:"threshold"`
@@ -51,9 +50,6 @@ func (r *CreateRequest) Validate() (string, bool) {
 	if r.ExpectedPrice == "" {
 		return "expectedPrice is not set", false
 	}
-	if r.Options == nil {
-		return "options.email is not set", false
-	}
 	r.Options.setDefault()
 	return "", true
 }