Remove seven YJIT counters that are no longer used.

yjit_iface.h

@@ -27,17 +27,13 @@ YJIT_DECLARE_COUNTERS(
 
     send_callsite_not_simple,
     send_kw_splat,
-    send_ic_empty,
-    send_invalid_cme,
     send_ivar_set_method,
     send_zsuper_method,
-    send_alias_method,
     send_undef_method,
     send_optimized_method,
     send_missing_method,
     send_bmethod,
     send_refined_method,
-    send_unknown_method_type,
     send_cfunc_ruby_array_varg,
     send_cfunc_argc_mismatch,
     send_cfunc_toomany_args,
@@ -47,9 +43,7 @@ YJIT_DECLARE_COUNTERS(
     send_iseq_complex_callee,
     send_not_implemented_method,
     send_getter_arity,
-    send_se_receiver_not_heap,
     send_se_cf_overflow,
-    send_se_cc_klass_differ,
     send_se_protected_check_failed,
 
     leave_se_finish_frame,
@@ -60,7 +54,6 @@ YJIT_DECLARE_COUNTERS(
     getivar_idx_out_of_range,
     getivar_undef,
     getivar_name_not_mapped,
-    getivar_not_object,
 
     setivar_se_self_not_heap,
     setivar_idx_out_of_range,