[gnome-continuous] Drop libical patch for GObject-Introspection

[Emmanuele Bassi <ebassi src gnome org>]

commit 718a2bf20a9a83d9bfe9876d0fa9dc5cd0e30df4
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sun Jun 4 00:25:42 2017 +0100

    Drop libical patch for GObject-Introspection
    
    The fix has been applied upstream.

 manifest.json                             |    3 +-
 patches/libical-build-introspection.patch |   33 -----------------------------
 2 files changed, 1 insertions(+), 35 deletions(-)
---
diff --git a/manifest.json b/manifest.json
index 7e5789c..f335928 100644
--- a/manifest.json
+++ b/manifest.json
@@ -988,8 +988,7 @@
                {"src": "gnome:gnome-online-miners"},
 
                {"src": "libical:libical",
-                "patches": ["libical-cmake-buildapi.patch",
-                             "libical-build-introspection.patch"]},
+                "patches": ["libical-cmake-buildapi.patch"]},
 
                {"src": "gnome:evolution-data-server",
                  "irc_room": "evolution",