MDEV-31005: Make working cursor-protocol

Updated tests: cases with bugs or which cannot be run
with the cursor-protocol were excluded with
"--disable_cursor_protocol"/"--enable_cursor_protocol"

Fix for v.10.5

mysql-test/main/empty_table.test

@@ -6,6 +6,8 @@
 drop table if exists t1;
 --enable_warnings
 
+# Enable after fix MDEV-31721
+--disable_cursor_protocol
 create table t1 (nr int(5) not null auto_increment,b blob,str char(10), primary key (nr));
 --disable_ps2_protocol
 select count(*) from t1;
@@ -24,6 +26,7 @@ drop table t1;
 select * from t2;
 --enable_ps2_protocol
 show status like "Empty_queries";
+--enable_cursor_protocol
 
 --echo # End of 4.1 tests