rlottie: clear JSON license mention

The tarball never contains any non-free JSON licensed code.

srcpkgs/rlottie/template

@@ -2,19 +2,23 @@
 pkgname=rlottie
 _commit=f6fc61f214945ac9961ba49fdfc9a3d3336e999b
 version=0.0.20200110
-revision=1
+revision=2
 wrksrc="rlottie-${_commit}"
 build_style=cmake
 configure_args="-DLOTTIE_CACHE=OFF"
 short_desc="Platform independent standalone library that plays Lottie Animation"
 maintainer="John <me@johnnynator.dev>"
-license="LGPL-2.1-or-later, FTL, MIT, JSON, BSD-3-Clause"
+license="LGPL-2.1-or-later, FTL, MIT, BSD-3-Clause"
 homepage="https://github.com/Samsung/rlottie"
 distfiles="https://github.com/Samsung/rlottie/archive/${_commit}.tar.gz"
 checksum=399bb06d8d2120f794eff8bc3e4cbbee13b9f22abcfd9f3f746f595d43ea0b42
 
 post_patch() {
 	vsed -e 's/c++14/c++17/g' -i CMakeLists.txt
+	# No JSON licensed source code included
+	vsed -i licenses/COPYING.RPD \
+		-e 's/To avoid the problematic JSON.*//' \
+		-e '/Under the JSON License/,/OTHER DEALINGS IN THE SOFTWARE/d'
 }
 
 post_install() {