[gnome-sdk-images] Attempt to upgrade to WebKitGTK+ 2.19.3

[Michael Catanzaro <mcatanzaro src gnome org>]

commit b73a319716394d794102b4816694de70bf43a094
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Wed Dec 13 21:03:25 2017 -0600

    Attempt to upgrade to WebKitGTK+ 2.19.3
    
    We finally have a successful master build for the first time in a long
    time. But WebKit's memory allocator is broken in 2.19.2, which is not
    very great. There's a new release out, so let's try upgrading.
    
    Also, temporarily remove my inhibitor debugging patch. It will need to
    be updated for 2.19.3.

 org.gnome.Sdk.json.in                          |   12 +-
 webkitgtk-avoid-perl-file-copy-recursive.patch |   19 -
 webkitgtk-idle-inhibitor-debugging.patch       |  454 ------------------------
 3 files changed, 2 insertions(+), 483 deletions(-)
---
diff --git a/org.gnome.Sdk.json.in b/org.gnome.Sdk.json.in
index 6e0d957..bf2fb66 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -798,16 +798,8 @@
             "sources": [
                 {
                     "type": "archive",
-                    "url": "https://webkitgtk.org/releases/webkitgtk-2.19.2.tar.xz";,
-                    "sha256": "439e88894accd4849d218b29a0755d25aa6c79224fc700206c860108d223d4c3"
-                },
-                {
-                    "type": "patch",
-                    "path": "webkitgtk-idle-inhibitor-debugging.patch"
-                },
-                {
-                    "type": "patch",
-                    "path": "webkitgtk-avoid-perl-file-copy-recursive.patch"
+                    "url": "https://webkitgtk.org/releases/webkitgtk-2.19.3.tar.xz";,
+                    "sha256": "dc6ab3bddbfffbab5a5ec14d81cfe263e0a11cc07c0b0e4aeb70afc46c06f752"
                 }
             ]
         },