An anode in a water heater is there for a purpose...just like a sacrificial zinc on a boat motor...to attract galvanic corrosion caused by electrolysis to corrode the sacrificial water heater anode instead of corroding the water heater tank.
If the water heater anode is removed, it will greatly reduce the life of the heater. You can replace everything on a water heater except the tank. When the tank goes, you have to replace the whole water heater, not to mention the potential flooding damage if the tank bursts rather than just springing a small leak for a "warning".
Some anodes react with certain types of well water and can cause a water odor. A different type of anode will resolve that issue. (I forget which, but a pro plumber should know.)
I wouldn't remove my water heater anode, but that's your call.