Remove CommonFont singleton.

imports/Spectral/Component/Timeline/MessageDelegate.qml

@@ -10,7 +10,6 @@ import Spectral.Component 2.0
 import Spectral.Dialog 2.0
 import Spectral.Menu.Timeline 2.0
 import Spectral.Effect 2.0
-import Spectral.Font 0.1
 
 ColumnLayout {
     readonly property bool avatarVisible: !sentByMe && (aboveAuthor !== author || aboveSection !== section || aboveEventType === "state" || aboveEventType === "emote" || aboveEventType === "other")
@@ -202,7 +201,7 @@ ColumnLayout {
 
                     color: "white"
 
-                    font.family: CommonFont.font.family
+                    font.family: window.font.family
                     font.pixelSize: 14
                     selectByMouse: true
                     readOnly: true

imports/Spectral/Font/CommonFont.qml

@@ -1,5 +0,0 @@
-pragma Singleton
-import QtQuick 2.12
-import QtQuick.Controls 2.12
-
-Label {}

imports/Spectral/Font/qmldir

@@ -1,3 +1,2 @@
 module Spectral.Font
 singleton MaterialFont 0.1 MaterialFont.qml
-singleton CommonFont 0.1 CommonFont.qml

res.qrc

@@ -30,7 +30,6 @@
         <file>imports/Spectral/Component/AutoListView.qml</file>
         <file>imports/Spectral/Component/AutoTextField.qml</file>
         <file>imports/Spectral/Panel/RoomPanelInput.qml</file>
-        <file>imports/Spectral/Font/CommonFont.qml</file>
         <file>imports/Spectral/Component/Timeline/SectionDelegate.qml</file>
         <file>assets/img/matrix.svg</file>
         <file>imports/Spectral/Effect/RippleEffect.qml</file>