Remove manifest that no longer works for KDE Connect version 1.4-441 (#6125)

manifests/KDE/KDEConnect/1.4-441.yaml

@@ -1,26 +0,0 @@
-# ================== General ==================
-Id: KDE.KDEConnect 
-Publisher: KDE
-Name: KDE Connect
-Author: KDE
-Description: Enabling communication between all your devices. Made for people like you.
-#AppMoniker: 
-Tags: connect,phone,mobile,android,notification
-#FileExtensions: 
-#Protocols: 
-
-# ================== License ==================
-Homepage: https://kdeconnect.kde.org/
-License: GPL-2.0 
-#LicenseUrl: 
-
-# ================= Installer =================
-Version: 1.4-441
-InstallerType: appx
-Installers:
-  - Arch: x64
-    Url: https://binary-factory.kde.org/job/kdeconnect-kde_Release_win64/lastSuccessfulBuild/artifact/kdeconnect-kde-1.4-441-windows-msvc2019_64-cl-sideload.appx
-    Sha256: b0dcd61db37f506d789bbd82c826ec78d71a2c0a6ff66178b0a1bf6ffc4f459c
-    #Switches:
-    #  Silent: 
-    #  SilentWithProgress: