Retiring MicroHF from GS

[olipatane]

MicroHF occurred at Hanford on three main days, the last of the days being in January 2017. They were related to the upconversion of violin modes from those days and are no longer occurring, so can be retired from GravitySpy.

Link to collections with glitches to be retired (you might have already retired some of these): https://www.zooniverse.org/projects/zooniverse/gravity-spy/collections/tufonkin/alternating-microhf-and-1080-line https://www.zooniverse.org/collections/ecceruelme/microhfwith1080-er10o2 https://www.zooniverse.org/collections/tufonkin/1024-and-2048 https://www.zooniverse.org/collections/futurewaves/1080-and-micro-hf https://www.zooniverse.org/collections/ecceruelme/microhfpure-o1o2 https://www.zooniverse.org/projects/zooniverse/gravity-spy/collections/d-2/2000hz

[scottcoughlin2014]

@olipatane I have successfully run all subjects in these collection through manual retirement