Remove search engine, add event list api

Signed-off-by: Asai Neko <sugar@sne.moe>

config/types.go

@@ -4,7 +4,6 @@ type config struct {
 	Server   server   `yaml:"server"`
 	Database database `yaml:"database"`
 	Cache    cache    `yaml:"cache"`
-	Search   search   `yaml:"search"`
 	Email    email    `yaml:"email"`
 	Secrets  secrets  `yaml:"secrets"`
 	TTL      ttl      `yaml:"ttl"`
@@ -39,12 +38,6 @@ type cache struct {
 	ServiceName string   `yaml:"service_name"`
 }
 
-type search struct {
-	Host        string `yaml:"host"`
-	ApiKey      string `yaml:"api_key"`
-	ServiceName string `yaml:"service_name"`
-}
-
 type email struct {
 	Host               string `yaml:"host"`
 	Port               string `yaml:"port"`