gnu: choqok: Don't depend on QtWebKit.

These dependencies were only used to create a plugin for Konqueror, which Guix
does not include.

See <https://issues.guix.gnu.org/53289> for more information about this change.

* gnu/packages/kde-internet.scm (choqok)[inputs]: Remove kdewebkit and qtwebkit.

gnu/packages/kde-internet.scm

@@ -70,7 +70,6 @@
            kcmutils
            kconfigwidgets
            kcoreaddons
-           kdewebkit
            kemoticons
            kglobalaccel
            kguiaddons
@@ -90,7 +89,6 @@
            qoauth
            qtbase-5
            qtnetworkauth
-           qtwebkit
            sonnet))
     (home-page "https://kde.org/applications/internet/org.kde.choqok")
     (synopsis "Micro-Blogging Client")