docs: remove unused from config.LintersSettings (golangci#3704)

Author: Antonboom

pkg/config/linters_settings.go

@@ -201,7 +201,6 @@ type LintersSettings struct {
 	Testpackage      TestpackageSettings
 	Thelper          ThelperSettings
 	Unparam          UnparamSettings
-	Unused           StaticCheckSettings
 	UseStdlibVars    UseStdlibVarsSettings
 	Varcheck         VarCheckSettings
 	Varnamelen       VarnamelenSettings

pkg/lint/lintersdb/manager.go

@@ -247,7 +247,7 @@ func (m Manager) GetAllSupportedLinterConfigs() []*linter.Config {
 		testpackageCfg = &m.cfg.LintersSettings.Testpackage
 		thelperCfg = &m.cfg.LintersSettings.Thelper
 		unparamCfg = &m.cfg.LintersSettings.Unparam
-		unusedCfg = &m.cfg.LintersSettings.Unused
+		unusedCfg = new(config.StaticCheckSettings)
 		varcheckCfg = &m.cfg.LintersSettings.Varcheck
 		varnamelenCfg = &m.cfg.LintersSettings.Varnamelen
 		whitespaceCfg = &m.cfg.LintersSettings.Whitespace