moved sed from PKGBUILD to push.sh

PKGBUILD

@@ -23,14 +23,10 @@ provides=("open-video-downloader")
 
 sha256sums=(
   "dffee4cfef50e8edb9be4136d5650b123e49b8a1ffd959ff3d2c42502fc391e3"
-  "217d02211a51853d920e53558cd9cbd7a753ba9f2036ddaa0ec4e00a77351b6c"
+  "c08c2abedcf2b7a1692c1968babf69671e5ecf77eb2d607a8fdcf25a7d490a2d"
   "188992cbe106d0dd6e7b9c219020118a1246c3657c828f86e463617c3d6214cb"
 )
 
-prepare() {
-  sed -i -e '/^X-AppImage-/d' "${srcdir}/${_pkgname}.desktop"
-}
-
 package() {
   install -Dm755 "${srcdir}/${_archive}" \
     "${pkgdir}/usr/bin/${_pkgname}"