cmake: Remove Boost.Python dependency

Since some of the required functionality is not supported, it was
supersided by own python C API wrappers.
This is to avoid weird bugs due to GIL and Python's internal global
states and the Boost.Python library and custom functions interfering
with each other.

CMakeLists.txt

@@ -24,7 +24,7 @@ option(PPPLUGIN_ENABLE_UNDEFINED_SANITIZE
 option(PPPLUGIN_ENABLE_UNREACHABLE_SANITIZE
        "Enable compilation with unreachable sanitize flags" OFF)
 
-find_package(Boost 1.61.0 REQUIRED COMPONENTS headers filesystem python)
+find_package(Boost 1.61.0 REQUIRED COMPONENTS headers filesystem)
 find_package(Python 3.0 REQUIRED COMPONENTS Development)
 find_package(Lua 5.2 REQUIRED)
 

src/CMakeLists.txt

@@ -16,7 +16,6 @@ add_library(${LIBRARY_TARGET} ${LIBRARY_SOURCES})
 target_link_libraries(
   ${LIBRARY_TARGET}
   PUBLIC Boost::filesystem
-  PUBLIC Boost::python
   PUBLIC Python::Python
   PRIVATE ${LUA_LIBRARIES})
 if(${PPPLUGIN_ENABLE_CPP17_COMPATIBILITY})