Don't link pybind11 into kp_logger

Doing so is a partial fix for building with -DKOMPUTE_OPT_BUILD_TESTS=ON
-DKOMPUTE_OPT_BUILD_PYTHON=ON but there are still undefined symbols at
link time.

Building either the tests or the Python bindings works correctly.
Building both at the same time still does not work.

src/logger/CMakeLists.txt

@@ -66,10 +66,6 @@ if(NOT KOMPUTE_OPT_LOG_LEVEL_DISABLED)
     else()
         target_link_libraries(kp_logger PUBLIC fmt::fmt)
     endif()
-
-    if(KOMPUTE_OPT_BUILD_PYTHON)
-        target_link_libraries(kp_logger PUBLIC pybind11::pybind11)
-    endif()
 endif()