devel/plasma5-plasma-sdk: remove dependency on webkit

'plasmate' was removed in [1], some while ago. While here, clean out
dependencies.

[1] https://invent.kde.org/plasma/plasma-sdk/-/commit/1ccaf823c32182e770a8a78772823f94369adba2

devel/plasma5-plasma-sdk/Makefile

@@ -1,21 +1,20 @@
 PORTNAME=	plasma-sdk
 DISTVERSION=	${KDE_PLASMA_VERSION}.1
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	devel kde kde-plasma
 
 MAINTAINER=	kde@FreeBSD.org
 COMMENT=	Plasma5 applications useful for Plasma development
 WWW=		https://www.kde.org/plasma-desktop
 
 USES=		cmake compiler:c++11-lib gettext kde:5 qt:5 tar:xz xorg
-USE_KDE=	archive attica auth codecs completion config configwidgets \
-		coreaddons dbusaddons i18n iconthemes itemmodels jobwidgets \
-		kdeclarative kio kirigami2 newstuff package parts \
-		plasma-framework service solid sonnet syntaxhighlighting \
+USE_KDE=	archive auth codecs completion config configwidgets coreaddons \
+		dbusaddons i18n iconthemes jobwidgets kdeclarative kio package \
+		parts plasma-framework service solid sonnet syntaxhighlighting \
 		texteditor textwidgets widgetsaddons windowsystem xmlgui \
-		doctools:build ecm:build
-USE_QT=		concurrent core dbus declarative gui network webkit widgets \
-		x11extras xml \
+		doctools:build ecm:build \
+		kirigami2:run
+USE_QT=		concurrent core dbus declarative gui network svg widgets xml \
 		buildtools:build qmake:build
 USE_XORG=	x11