msm: camera: Remove nonsensical register reads in cam_vfe_fe_reg_dump()

soc_private->cpas_handle is an array of registers; passing it wholesale
and casting the error away is completely wrong. Since it's unclear which
register is intended to be read here, just remove the nonsensical code
entirely.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
Change-Id: I94e895b09e1cff81f2b368efda18cb77eb63ee43