Revert "PS-9500: Code refresh for 8.0.41-32 - fix opt_trace.bugs_ps_prot_all, opt_trace.general_ps_prot_all"

This reverts commit 8b3687d.

Author: percona-ysorokin

mysql-test/suite/opt_trace/r/bugs_ps_prot_all.result

@@ -1949,7 +1949,7 @@ ON table2 .col_int_key = table1 .col_int_key
                       ] /* setup_range_conditions */,
                       "group_index_range": {
                         "chosen": false,
-                        "cause": "not_original_query_table"
+                        "cause": "not_single_table"
                       } /* group_index_range */,
                       "skip_scan_range": {
                         "chosen": false,

mysql-test/suite/opt_trace/r/general_ps_prot_all.result

@@ -1368,7 +1368,7 @@ explain SELECT c FROM t5 where c+1 in (select d+1 from t6 where d is null)	{
                   ] /* setup_range_conditions */,
                   "group_index_range": {
                     "chosen": false,
-                    "cause": "not_original_query_table"
+                    "cause": "not_single_table"
                   } /* group_index_range */,
                   "skip_scan_range": {
                     "chosen": false,