LibM: Remove stale commented out CMake commands

Author: https://github.com/ADKaster
Commit: 3c80a4caeb
Pull-request: https://github.com/SerenityOS/serenity/pull/12881
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/bgianfo
Reviewed-by: https://github.com/kleinesfilmroellchen

Userland/Libraries/LibM/CMakeLists.txt

@@ -8,6 +8,3 @@ set_source_files_properties (../LibC/ssp.cpp PROPERTIES COMPILE_FLAGS
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -nostdlib")
 serenity_libc(LibM m)
-#target_link_libraries(LibM)
-#set_target_properties(LibM PROPERTIES OUTPUT_NAME m)
-#target_link_directories(LibM PUBLIC ${CMAKE_CURRENT_BINARY_DIR})