Proposal for gpio_regulator usage in ACPI never got accepted upstream
for Linux kernel. So, the gpio_regulator driver in coreboot remains
unused. This change drops this unused driver.
Change-Id: Ia1e0ae4f955b9ffc8346d957f755499419d8cbc7
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42966
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>