Remove "Sync" button

CURA-4211

cura/CuraApplication.py

@@ -125,8 +125,6 @@ class CuraApplication(QtApplication):
     #        Cura will always show the Add Machine Dialog upon start.
     stacksValidationFinished = pyqtSignal()  # Emitted whenever a validation is finished
 
-    syncConfigurationFromPrinter = pyqtSignal()  # Emitted when the user wants to sync configuration from printer
-
     def __init__(self):
         # this list of dir names will be used by UM to detect an old cura directory
         for dir_name in ["extruders", "machine_instances", "materials", "plugins", "quality", "user", "variants"]:
@@ -1395,7 +1393,3 @@ class CuraApplication(QtApplication):
                     node = node.getParent()
 
                 Selection.add(node)
-
-    @pyqtSlot()
-    def startSyncingConfigurationFromPrinter(self):
-        self.syncConfigurationFromPrinter.emit()

plugins/UM3NetworkPrinting/DiscoverUM3Action.py

@@ -26,7 +26,6 @@ class DiscoverUM3Action(MachineAction):
         self.__additional_components_view = None
 
         Application.getInstance().engineCreatedSignal.connect(self._createAdditionalComponentsView)
-        Application.getInstance().syncConfigurationFromPrinter.connect(self.loadConfigurationFromPrinter)
 
         self._last_zeroconf_event_time = time.time()
         self._zeroconf_change_grace_period = 0.25 # Time to wait after a zeroconf service change before allowing a zeroconf reset

resources/qml/SidebarHeader.qml

@@ -47,71 +47,6 @@ Column
             color: UM.Theme.getColor("text")
             visible: extruderSelectionRow.visible
         }
-
-        Button
-        {
-            id: syncMachineButton
-            anchors.verticalCenter: parent.verticalCenter
-            anchors.right: parent.right
-            text: catalog.i18nc("@button:action", "Sync")
-            visible: extruderSelectionRow.visible
-
-            property bool printerConnected: Cura.MachineManager.printerOutputDevices.length != 0
-            enabled: printerConnected
-
-            onClicked:
-            {
-                CuraApplication.startSyncingConfigurationFromPrinter();
-            }
-
-            style: ButtonStyle
-            {
-                background: Rectangle
-                {
-                    implicitWidth: UM.Theme.getSize("button").width * 1.1
-                    implicitHeight: UM.Theme.getSize("sidebar_tabs").height / 3
-                    color: "transparent"
-                }
-                label: Item
-                {
-                    implicitWidth: UM.Theme.getSize("button").width * 1.1
-                    implicitHeight: UM.Theme.getSize("sidebar_tabs").height / 3
-                    Label
-                    {
-                        id: labelText
-                        anchors.left: parent.left
-                        anchors.leftMargin: UM.Theme.getSize("default_lining").width
-                        anchors.right: downArrow.left
-                        anchors.rightMargin: UM.Theme.getSize("default_margin").width / 2
-                        anchors.top: parent.top
-
-                        text: control.text
-                        font: UM.Theme.getFont("default")
-                        color: control.hovered ? UM.Theme.getColor("sync_button_text_hovered") : UM.Theme.getColor("sync_button_text")
-
-                        elide: Text.ElideRight;
-                        verticalAlignment: Text.AlignVCenter;
-                    }
-
-                    UM.RecolorImage
-                    {
-                        id: downArrow
-                        anchors.right: parent.right
-                        anchors.rightMargin: UM.Theme.getSize("default_lining").width * 2
-                        anchors.top: labelText.top
-                        anchors.topMargin: UM.Theme.getSize("default_margin").height / 3
-
-                        source: UM.Theme.getIcon("arrow_bottom")
-                        width: UM.Theme.getSize("standard_arrow").width
-                        height: UM.Theme.getSize("standard_arrow").height
-                        sourceSize.width: width + 5
-                        sourceSize.height: width + 5
-
-                        color: control.hovered ? UM.Theme.getColor("sync_button_text_hovered") : UM.Theme.getColor("sync_button_text")
-                    }
-                }
-            }
-        }
     }
 
     Item