Remove unneeded rounding

resources/qml/Settings/SettingTextField.qml

@@ -33,7 +33,7 @@ SettingItem
         anchors.fill: parent
 
         radius: UM.Theme.getSize("setting_control_radius").width
-        border.width: Math.round(UM.Theme.getSize("default_lining").width)
+        border.width: UM.Theme.getSize("default_lining").width
         border.color:
         {
             if(!enabled)

resources/qml/Settings/SettingView.qml

@@ -25,7 +25,7 @@ Item
         visible: true
 
         radius: UM.Theme.getSize("setting_control_radius").width
-        border.width: Math.round(UM.Theme.getSize("default_lining").width)
+        border.width: UM.Theme.getSize("default_lining").width
         border.color:
         {
             if (hoverMouseArea.containsMouse || clearFilterButton.containsMouse)