Remove a misleading comment from the Modelverse kernel

kernel/modelverse_kernel/main.py

@@ -48,10 +48,6 @@ class ModelverseKernel(object):
         #
         #     self.jit.set_jit_enabled(False)
         #
-        # To always use the fast JIT, uncomment the line below:
-        #
-        #     self.jit.set_function_body_compiler(jit.compile_function_body_fast)
-        #
         # To disable direct calls in the JIT, uncomment the line below:
         #
         #     self.jit.allow_direct_calls(False)