msm: vidc: Cleanup extended controls

Set/Get extendec controls and get crop ioctls are no longer
supported or needed. These calls are removed from driver.

CRs-Fixed: 2368458
Change-Id: Ia14b80abff4a50c9e9eb3b9cb032376df9863584
Signed-off-by: Vaibhav Deshu Venkatesh <vdeshuve@codeaurora.org>