Fix merge error

Author: gbaraldi

src/jl_exported_funcs.inc

@@ -450,7 +450,6 @@
     XX(jl_take_buffer) \
     XX(jl_task_get_next) \
     XX(jl_add_spinner) \
-    XX(jl_task_stack_buffer) \
     XX(jl_termios_size) \
     XX(jl_test_cpu_feature) \
     XX(jl_threadid) \