[gnome-continuous] Drop config-opts for Mutter

[Emmanuele Bassi <ebassi src gnome org>]

commit 400008fa262be9dff8e7daedbbb0bc0bd5303b26
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Tue Nov 6 18:17:13 2018 +0000

    Drop config-opts for Mutter
    
    Mutter moved to Meson, so we shouldn't use configuration options for
    Autotools.

 manifest.json | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/manifest.json b/manifest.json
index 254cd56..a54a4ef 100644
--- a/manifest.json
+++ b/manifest.json
@@ -964,9 +964,7 @@
 
                {"src": "gnome:mutter.git",
                  "name": "mutter",
-                 "irc_room": "gnome-shell",
-                "config-opts": ["--enable-compile-warnings=maximum",
-                                "--enable-installed-tests"]},
+                 "irc_room": "gnome-shell"},
 
                {"src": "gnome:gjs.git",
                  "name": "gjs",