chore(component): Removed old unused Header component

Signed-off-by: Helio Chissini de Castro <heliocastro@gmail.com>

Author: heliocastro

src/components/sw360/Header/Header.tsx

@@ -14,7 +14,6 @@ import AuthScreen from './AuthScreen/AuthScreen'
 import ComponentOwnerDialog from './ComponentOwnerDialog/ComponentOwnerDialog'
 import Footer from './Footer/Footer'
 import FossologyClearing from './FossologyClearing/FossologyClearing'
-import Header from './Header/Header'
 import LanguageSwitcher from './LanguageSwitcher/LanguageSwitcher'
 import LocaleSwitcher from './LocaleSwitcher/LocaleSwitcher'
 import ModeratorsDialog from './ModeratorsDialog/ModeratorsDialog'
@@ -46,7 +45,6 @@ export {
     ComponentOwnerDialog,
     Footer,
     FossologyClearing,
-    Header,
     LanguageSwitcher,
     LocaleSwitcher,
     ModeratorsDialog,