I would be cautious. The abs sensor harness are shielded coax because the sensor signals are very susceptible to EMI and bad connections.
If I were doing it to my own bike, i'd interrupt some other wire and do it thoughtfully so that I felt confident I was not jacking with something that could cause ABS to tweak out when I wanted it.
But yeah, for permanently deactivating, say for a long off road trip, unplugging the sensor wire under the seat works.
Owned to date. Honda Aero 50, Honda Elite 80, Honda Elite 250x2, Suzuki Katana, Suzuki RF600, Yamaha YZF1000R, Kymco Xciting 500, Suzuki GS500, Suzuki Burgman 650, BMW F800GSx2, BMW S1000RR, Aprilia Scarabeo 200, Aprilia Caponord, Aprilia Sportcity 250
I love and miss you Jeneca and I'm sorry.