Remove unused EnvDirNotFound error

Author: Marton6

internals/secrethub/run.go

@@ -38,7 +38,6 @@ var (
 	ErrReadEnvDir             = errRun.Code("env_dir_read_error").ErrorPref("could not read the environment directory: %s")
 	ErrReadEnvFile            = errRun.Code("env_file_read_error").ErrorPref("could not read the environment file %s: %s")
 	ErrReadDefaultEnvFile     = errRun.Code("default_env_file_read_error").ErrorPref("could not read default run env-file %s: %s")
-	ErrEnvDirNotFound         = errRun.Code("env_dir_not_found").Error(fmt.Sprintf("could not find specified environment. Make sure you have executed `%s set`.", ApplicationName))
 	ErrTemplate               = errRun.Code("invalid_template").ErrorPref("could not parse template at line %d: %s")
 	ErrParsingTemplate        = errRun.Code("template_parsing_failed").ErrorPref("error while processing template file '%s': %s")
 	ErrInvalidTemplateVar     = errRun.Code("invalid_template_var").ErrorPref("template variable '%s' is invalid: template variables may only contain uppercase letters, digits, and the '_' (underscore) and are not allowed to start with a number")