removes compile definition defining for spdlog target (#449)

spdlog is not build when the CMake option
"KOMPUTE_OPT_USE_BUILT_IN_SPDLOG" is set to false. When activating
spdlog for logging via CMake option "KOMPUTE_OPT_USE_SPDLOG", CMake will
deliver an error, as the current CMake file tries to add a definition to
the spdlog target.

Defining the compiler definition "SPDLOG_ACTIVE_LEVEL" has no effect on
spdlog itself, it just has an effect on spdlog target consumers.
Therefore, it can be removed so that the project can be build with the
mentioned CMake options.

Signed-off-by: Matthias Möller <m_moeller@live.de>

Author: TinyTinni

src/logger/CMakeLists.txt

@@ -56,7 +56,6 @@ target_compile_definitions(kp_logger INTERFACE KOMPUTE_OPT_ACTIVE_LOG_LEVEL=KOMP
 if(NOT KOMPUTE_OPT_LOG_LEVEL_DISABLED)
     if(KOMPUTE_OPT_USE_SPDLOG)
         target_link_libraries(kp_logger PUBLIC spdlog::spdlog)
-        target_compile_definitions(spdlog INTERFACE SPDLOG_ACTIVE_LEVEL=SPDLOG_LEVEL_${KOMPUTE_OPT_LOG_LEVEL})
         target_compile_definitions(kp_logger INTERFACE SPDLOG_ACTIVE_LEVEL=SPDLOG_LEVEL_${KOMPUTE_OPT_LOG_LEVEL})
         message(STATUS "setting SPDLOG_ACTIVE_LEVEL to SPDLOG_LEVEL_${KOMPUTE_OPT_LOG_LEVEL}")