Remove geolocation for new connection mail

With the lack available IPv4 addresses, the providers are reusing their
pool of addresses and it makes harder to geolocalize them. We have more
errors, and the errors confuse a lot our users. So, we think it is
better to remove this information in the new connection mail.

assets/mails/new_connection.mjml

@@ -8,7 +8,6 @@
 </mj-text>
 <mj-text mj-class="content-medium">
 	<ul style="margin: 0">
-		<li>{{t "Mail New Connection Place"}} {{.Subdivision}}, {{.Country}} ({{t "Mail New Connection Near"}} {{.City}})</li>
 		<li>{{t "Mail New Connection Time"}} {{.Time}}</li>
 		<li>{{t "Mail New Connection Browser"}} {{.Browser}}</li>
 		<li>{{t "Mail New Connection OS"}} {{.OS}}</li>

assets/mails/new_connection.text

 {{t "Mail New Connection Intro"}}
 
-{{t "Mail New Connection Place"}} {{.Subdivision}}, {{.Country}} ({{t "Mail New Connection Near"}} {{.City}})
 {{t "Mail New Connection Time"}} {{.Time}}
 {{t "Mail New Connection Browser"}} {{.Browser}}
 {{t "Mail New Connection OS"}} {{.OS}}

model/session/login_history.go

@@ -184,9 +184,6 @@ func sendLoginNotification(i *instance.Instance, l *LoginEntry) error {
 	}
 
 	templateValues := map[string]interface{}{
-		"City":                 l.City,
-		"Subdivision":          l.Subdivision,
-		"Country":              l.Country,
 		"Time":                 l.CreatedAt.Format("2006-01-02 15:04:05Z07:00"),
 		"IP":                   l.IP,
 		"Browser":              l.Browser,