Add setting to disable profile settings

Those do not make sense if the profile is forced.

src/conf/cryptooperationsconfigwidget.cpp

@@ -161,10 +161,10 @@ void CryptoOperationsConfigWidget::applyProfile(const QString &profile)
 // group if there are any.
 void CryptoOperationsConfigWidget::setupProfileGui(QBoxLayout *layout)
 {
-    qCDebug(KLEOPATRA_LOG) << "Engine version ";
-    if (GpgME::engineInfo(GpgME::GpgEngine).engineVersion() < "2.1.20" || !layout) {
+    const Settings settings;
+    if (settings.profilesDisabled() || GpgME::engineInfo(GpgME::GpgEngine).engineVersion() < "2.1.20" || !layout) {
         //  Profile support is new in 2.1.20
-        qCDebug(KLEOPATRA_LOG) << "Engine version false";
+        qCDebug(KLEOPATRA_LOG) << "Profile settings disabled";
         return;
     }
     QDir datadir(QString::fromUtf8(GpgME::dirInfo("datadir")) + QStringLiteral("/../doc/gnupg/examples"));

src/kcfg/settings.kcfg

@@ -139,4 +139,10 @@
      <default>false</default>
    </entry>
  </group>
+ <group name="General">
+     <entry name="ProfilesDisabled" type="Bool">
+        <label>Disable profile settings</label>
+        <default>false</default>
+     </entry>
+ </group>
 </kcfg>