Remove flatpak build file

Moved to kde:flatpak-kde-applications

flatpak/org.kde.Falkon.json

@@ -1,32 +0,0 @@
-{
-    "id": "org.kde.Falkon",
-    "runtime": "org.kde.Platform",
-    "runtime-version": "5.9",
-    "sdk": "org.kde.Sdk",
-    "tags": ["nightly"],
-    "desktop-file-name-suffix": " (Nightly)",
-    "command": "falkon",
-    "finish-args": [
-        "--share=ipc",
-        "--share=network",
-        "--socket=x11",
-        "--socket=wayland",
-        "--socket=pulseaudio",
-        "--device=dri",
-        "--filesystem=host",
-        "--system-talk-name=org.freedesktop.GeoClue2"
-    ],
-
-    "modules": [
-        {
-            "buildsystem": "cmake",
-            "name": "falkon",
-            "sources": [
-                {
-                    "type": "git",
-                    "url": "git://anongit.kde.org/falkon.git"
-                }
-            ]
-        }
-    ]
-}