remove dangling remote widgets code

Summary:
can't be enabled anywhere + not actually doing anything as there is no
backing for it in the cpp + qca isn't even looked for by cmake

Test Plan: none

Reviewers: #plasma, broulik

Reviewed By: #plasma, broulik

Subscribers: kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D22618

src/plasma/private/authorizationmanager_p.h

@@ -25,10 +25,6 @@
 #include <QMap>
 #include <QString>
 
-#if ENABLE_REMOTE_WIDGETS
-#include <QtCrypto>
-#endif
-
 #include <kconfiggroup.h>
 
 #include <authorizationmanager.h>
@@ -68,10 +64,6 @@ public:
     void addCredentials(const Credentials &identity);
     void saveRules();
 
-#if ENABLE_REMOTE_WIDGETS
-    QCA::Initializer            initializer;
-#endif
-
     AuthorizationManager        *q;
     Jolie::Server               *server;
     AuthorizationManager::AuthorizationPolicy