update(cmake): remove lpeg dependency

The Lua PEG parser is not longer needed, since we now use the new filter parser implemented
in libsinsp.

Signed-off-by: Jason Dellaluce <jasondellaluce@gmail.com>

scripts/build-lpeg.sh

@@ -1,45 +0,0 @@
-#!/usr/bin/env bash
-#
-# Copyright (C) 2019 The Falco Authors.
-#
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-set -ex
-
-PREFIX=$1
-
-if [ -z "$PREFIX" ]; then
-    PREFIX=.
-fi
-
-mkdir -p $PREFIX
-
-gcc -O2 -fPIC -I"$LUA_INCLUDE" -c lpcap.c -o $PREFIX/lpcap.o
-gcc -O2 -fPIC -I"$LUA_INCLUDE" -c lpcode.c -o $PREFIX/lpcode.o
-gcc -O2 -fPIC -I"$LUA_INCLUDE" -c lpprint.c -o $PREFIX/lpprint.o
-gcc -O2 -fPIC -I"$LUA_INCLUDE" -c lptree.c -o $PREFIX/lptree.o
-gcc -O2 -fPIC -I"$LUA_INCLUDE" -c lpvm.c -o $PREFIX/lpvm.o
-
-
-# For building lpeg.so, which we don't need now that we're statically linking lpeg.a into falco
-#gcc -shared -o lpeg.so -L/usr/local/lib lpcap.o lpcode.o lpprint.o lptree.o lpvm.o
-#gcc -shared -o lpeg.so -L/usr/local/lib lpcap.o lpcode.o lpprint.o lptree.o lpvm.o
-
-pushd $PREFIX
-/usr/bin/ar cr lpeg.a lpcap.o lpcode.o lpprint.o lptree.o lpvm.o
-/usr/bin/ranlib lpeg.a
-popd
-
-chmod ug+w re.lua