Update CMakeLists.txt

Author: qubka

CMakeLists.txt

@@ -88,7 +88,6 @@ target_compile_definitions(${PROJECT_NAME} PRIVATE
     PY3LM_PLATFORM_WINDOWS=$<BOOL:${WIN32}>
     PY3LM_PLATFORM_APPLE=$<BOOL:${APPLE}>
     PY3LM_PLATFORM_LINUX=$<BOOL:${LINUX}>
-    PY3LM_ARCH_ARM=$<BOOL:${PLUGIFY_USE_ARM}>
     PY3LM_IS_DEBUG=$<STREQUAL:${CMAKE_BUILD_TYPE},Debug>)
 
 set(PY3LM_VERSION "0" CACHE STRING "Set version name")