Asking for an opinion on By-passing an Op-amp circuit
I would avoid shorting input and output of the Opamp if you do not plan to desolder it entirely, or to power it off. The additional positive feedback might lead to the amplifier instability (depending on the signal source impedance), and/or possibly damage the opamp.

The better solution is to have the option to turn the opamp to a unity gain stage if you are not trying to bypass it to reduce the system power consumption. To achieve this you have two options:


Put a header in series with R25 towards the ground. With the header short-circuited you have a gain given by R25 and RV4; without you have a unity gain stage.
Put a header to bypass RV4 when you want to use the opamp as a unity gain stage.