YJIT: Count cold_iseq_entry by default (#8654)

yjit/src/stats.rs

@@ -573,11 +573,6 @@ pub extern "C" fn rb_yjit_get_exit_locations(_ec: EcPtr, _ruby_self: VALUE) -> V
 #[no_mangle]
 pub extern "C" fn rb_yjit_incr_counter(counter_name: *const std::os::raw::c_char) {
     use std::ffi::CStr;
-
-    if !get_option!(gen_stats) {
-        return;
-    }
-
     let counter_name = unsafe { CStr::from_ptr(counter_name).to_str().unwrap() };
     let counter_ptr = get_counter_ptr(counter_name);
     unsafe { *counter_ptr += 1 };