The best solution is to remove the configuration for the interface from the device configuration. As a work around, set the HSRPMode attribute 0x21174f to Off or Passive on the associated CiscoHSRPApp model should stop Spectrum from polling every poll cycle:
The HSRP table is not polled.
The HSRP table is polled once at the activation. Otherwise, CA Spectrum relies on updates from traps to update this information.
The HSRP table is polled every poll interval in addition to the passive processing.