MDEV-7956 - handler::rebind_psi() takes 0.07% in OLTP RO
Do not call handler::rebind_psi() and handler::unbind_psi() when performance schema is compiled out. Overhead change: handler::rebind_psi 0.04% -> out of radar handler::unbind_psi 0.03% -> out of radar open_table 0.21% -> 0.18% close_thread_table 0.05% -> 0.05%
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