Revert "webkit-gtk3: update to 1.8.2."

This reverts commit 95e3563703.

Build is currently broken, so revert for now.

srcpkgs/webkit-gtk3/template

@@ -1,7 +1,7 @@
 # Template file for 'webkit-gtk3'
 pkgname=webkit-gtk3
-version=1.8.2
-revision=1
+version=1.8.1
+revision=3
 wrksrc=webkit-${version}
 makedepends="automake perl pkg-config intltool which gperf bison25 flex
 jpeg-devel libpng-devel>=1.5.10 sqlite-devel gtk+-devel gtk+3-devel
@@ -13,7 +13,7 @@ maintainer="Juan RP <xtraeme@gmail.com>"
 homepage="http://webkitgtk.org/"
 license="LGPL-2.1, Simplified BSD (2 clause)"
 distfiles="${homepage}/releases/webkit-${version}.tar.xz"
-checksum=0cd69b7c4bf4af3442a5e6777a1487cabf14db15baeeed96d0865419f69b81e6
+checksum=9a126a76b40ca61adb1f1626e1567f976740af2332948cc5189489dbd01e3b28
 long_desc="
  WebKit is an open source web browser engine. WebKit is also the name of
  the Mac OS X system framework version of the engine that's used by