pegtl: Upgrade 2.1.4 -> 2.8.1

Removed patch for issue fixed upstream.
Year updated in LICENSE.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-extended/pegtl/pegtl/0001-Fix-clang-warning-about-non-virtual-dtor.patch

@@ -1,25 +0,0 @@
-From 340110292b35d367205953a59e7eab28e1f4a0bb Mon Sep 17 00:00:00 2001
-From: Daniel Frey <d.frey@gmx.de>
-Date: Sat, 7 Apr 2018 09:13:51 +0200
-Subject: [PATCH] Fix clang-warning about non-virtual dtor
-
-Upstream-Status: Backport [https://github.com/taocpp/PEGTL/commit/340110292b35d367205953a59e7eab28e1f4a0bb]
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
- src/example/pegtl/json_classes.hpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/src/example/pegtl/json_classes.hpp
-+++ b/src/example/pegtl/json_classes.hpp
-@@ -34,10 +34,7 @@ namespace examples
-          : type( in_type )
-       {
-       }
--
--      ~json_base()
--      {
--      }
-+      virtual ~json_base() = default;
-    };
- 
-    inline std::ostream& operator<<( std::ostream& o, const json_base& j )

meta-oe/recipes-extended/pegtl/pegtl_2.1.4.bb

@@ -1,13 +0,0 @@
-DESCRIPTION="header-only library for creating parsers according to Parsing Expression Grammar"
-HOMEPAGE="https://github.com/taocpp/PEGTL"
-LICENSE="MIT"
-LIC_FILES_CHKSUM = "file://LICENSE;md5=80cb066ab204c7fe022f1cfe0c2c6818"
-
-SRCREV = "776fa4a1e8bda860008524f6dd9473967c8375b1"
-SRC_URI = "git://git@github.com/taocpp/PEGTL.git;protocol=https;branch=master \
-           file://0001-Fix-clang-warning-about-non-virtual-dtor.patch \
-          "
-
-inherit cmake
-
-S = "${WORKDIR}/git"

meta-oe/recipes-extended/pegtl/pegtl_2.8.1.bb

@@ -0,0 +1,12 @@
+DESCRIPTION="header-only library for creating parsers according to Parsing Expression Grammar"
+HOMEPAGE="https://github.com/taocpp/PEGTL"
+LICENSE="MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=ae77b0d903a788cb48f4f0926ffc468b"
+
+SRCREV = "7aff80da2ca4fcb0b47f32ba684ff2e1cd48c579"
+SRC_URI = "git://github.com/taocpp/PEGTL.git;protocol=https;branch=2.x \
+          "
+
+inherit cmake
+
+S = "${WORKDIR}/git"