Clear tablet healthcheck cache record on EOF RPC error too
Clear tablet healthcheck cache record on EOF RPC error too

Signed-off-by: Matt Lord <5c2d6cb5cc654501c0d86e59cab3211bbda644af@gmail.com>

mahak/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,mahak/vitess,mahak/vitess,mahak/vitess