Remove uneeded patches for flatpak

Patches are uneeded for all arch.
But we were trying to copy them on flatpak.

.github/scripts/common.py

@@ -408,7 +408,7 @@ def update_flathub_git():
     call(command, cwd=TMP_DIR)
     shutil.copy(str(BASE_DIR / "org.kiwix.desktop.json"), str(git_repo_dir))
     patch_dir = KBUILD_SOURCE_DIR / "kiwixbuild" / "patches"
-    for dep in ("libaria2", "mustache", "pugixml", "xapian", "zstd"):
+    for dep in ["pugixml"]:
         for f in patch_dir.glob("{}_*.patch".format(dep)):
             shutil.copy(str(f), str(git_repo_dir / "patches"))
     command = ["git", "add", "-A", "."]