Run gosimple against codebase (#12928)

model/config.go

@@ -2880,7 +2880,7 @@ func (ss *ServiceSettings) isValid() *AppError {
 		return NewAppError("Config.IsValid", "model.config.is_valid.webserver_security.app_error", nil, "", http.StatusBadRequest)
 	}
 
-	if *ss.ConnectionSecurity == CONN_SECURITY_TLS && *ss.UseLetsEncrypt == false {
+	if *ss.ConnectionSecurity == CONN_SECURITY_TLS && !*ss.UseLetsEncrypt {
 		appErr := NewAppError("Config.IsValid", "model.config.is_valid.tls_cert_file.app_error", nil, "", http.StatusBadRequest)
 
 		if *ss.TLSCertFile == "" {

model/slack_attachment.go

@@ -111,11 +111,7 @@ func (s *SlackAttachment) Equals(input *SlackAttachment) bool {
 		}
 	}
 
-	if s.Timestamp != input.Timestamp {
-		return false
-	}
-
-	return true
+	return s.Timestamp == input.Timestamp
 }
 
 type SlackAttachmentField struct {