remove dllexport jl_arraylen which no longer exists (#53765)

Author: fatteneder

src/julia_internal.h

@@ -1429,7 +1429,6 @@ JL_DLLEXPORT jl_value_t *jl_abs_float(jl_value_t *a);
 JL_DLLEXPORT jl_value_t *jl_copysign_float(jl_value_t *a, jl_value_t *b);
 JL_DLLEXPORT jl_value_t *jl_flipsign_int(jl_value_t *a, jl_value_t *b);
 
-JL_DLLEXPORT jl_value_t *jl_arraylen(jl_value_t *a);
 JL_DLLEXPORT jl_value_t *jl_have_fma(jl_value_t *a);
 JL_DLLEXPORT int jl_stored_inline(jl_value_t *el_type);
 JL_DLLEXPORT jl_value_t *(jl_array_data_owner)(jl_array_t *a);