drop STORAGE_USERS_EXPOSE_DATA_SERVER env var

Signed-off-by: Jörn Friedrich Dreyer <jfd@butonic.de>

services/storage-users/pkg/config/config.go

@@ -33,7 +33,6 @@ type Config struct {
 	FilemetadataCache FilemetadataCache `yaml:"filemetadata_cache"`
 	IDCache           IDCache           `yaml:"id_cache"`
 	MountID           string            `yaml:"mount_id" env:"STORAGE_USERS_MOUNT_ID" desc:"Mount ID of this storage." introductionVersion:"1.0.0"`
-	ExposeDataServer  bool              `yaml:"expose_data_server" env:"STORAGE_USERS_EXPOSE_DATA_SERVER" desc:"Exposes the data server directly to users and bypasses the data gateway. Ensure that the data server address is reachable by users." introductionVersion:"1.0.0"`
 	ReadOnly          bool              `yaml:"readonly" env:"STORAGE_USERS_READ_ONLY" desc:"Set this storage to be read-only." introductionVersion:"1.0.0"`
 	UploadExpiration  int64             `yaml:"upload_expiration" env:"STORAGE_USERS_UPLOAD_EXPIRATION" desc:"Duration in seconds after which uploads will expire. Note that when setting this to a low number, uploads could be cancelled before they are finished and return a 403 to the user." introductionVersion:"1.0.0"`
 	Tasks             Tasks             `yaml:"tasks"`

services/storage-users/pkg/config/defaults/defaultconfig.go

@@ -87,7 +87,6 @@ func DefaultConfig() *config.Config {
 		Reva:                    shared.DefaultRevaConfig(),
 		DataServerURL:           "http://localhost:9158/data",
 		DataGatewayURL:          "http://localhost:9140/data",
-		ExposeDataServer:        true,
 		RevaGatewayGRPCAddr:     "127.0.0.1:9142",
 		TransferExpires:         86400,
 		UploadExpiration:        24 * 60 * 60,

services/storage-users/pkg/revaconfig/config.go

@@ -36,7 +36,7 @@ func StorageUsersConfigFromStruct(cfg *config.Config) map[string]any {
 					"driver":             cfg.Driver,
 					"drivers":            StorageProviderDrivers(cfg),
 					"mount_id":           cfg.MountID,
-					"expose_data_server": cfg.ExposeDataServer,
+					"expose_data_server": true,
 					"data_server_url":    cfg.DataServerURL,
 					"upload_expiration":  cfg.UploadExpiration,
 					"events": map[string]any{