commit
222cc7b1 (regulator: core: Allow multiple requests of a single supply mapping)
removed the usage of get_device_regulator().
Remove the function definition too amd get rid of the following warning:
drivers/regulator/core.c:112:26: warning: 'get_device_regulator' defined but not used [-Wunused-function]
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>