[evince] flatpak: Remove libwebp from manistest

[Germán Poo-Caamaño <gpoo src gnome org>]

commit 9c4dc4cde467008431fe4b21626f683d5a32a6f2
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Fri Oct 12 11:02:02 2018 -0300

    flatpak: Remove libwebp from manistest
    
    * libwep is already in Sdk master.

 build-aux/flatpak/org.gnome.Evince.json | 19 -------------------
 1 file changed, 19 deletions(-)
---
diff --git a/build-aux/flatpak/org.gnome.Evince.json b/build-aux/flatpak/org.gnome.Evince.json
index 91eb4b7e..ac4ecca7 100644
--- a/build-aux/flatpak/org.gnome.Evince.json
+++ b/build-aux/flatpak/org.gnome.Evince.json
@@ -63,25 +63,6 @@
                 }
             ]
         },
-        {
-            "name": "libwebp",
-            "config-opts": [
-                "--disable-static",
-                "--enable-libwebpmux",
-                "--enable-libwebpdemux"
-            ],
-            "cleanup": [
-                "/share",
-                "/bin"
-            ],
-            "sources": [
-                {
-                    "type": "archive",
-                    "url": "https://github.com/webmproject/libwebp/archive/v1.0.0.tar.gz";,
-                    "sha256": "c5c5ebf979543ac1f3348df8f6245262abd787a147b9632c880d92bfc38dbbeb"
-                }
-            ]
-        },
         {
             "name": "webp-pixbuf-loader",
             "buildsystem": "cmake-ninja",