J. Nick Koston f3c175ab39 [api] Remove virtual destructor from ProtoMessage
API protobuf messages are never deleted through base class pointers —
they are always stack-allocated and passed by reference. The virtual
destructor occupies 2 vtable slots (complete + deleting destructor)
on 32-bit platforms using the Itanium ABI, costing 8 bytes per vtable.

With 122 message classes, removing the virtual destructor saves
~976 bytes of flash. Each vtable shrinks from 24 bytes to 16 bytes.
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Description
ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems.
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