input: touchscreen: Remove redundant code from Goodix driver

Remove code that reads firmware from the header file,
this feature is not supported

This patch is propagated from msm-3.10 kernel.
(commit: 5da10ccfb397193feb7234d18d5050365383474c
input: touchscreen: Remove redundant code from Goodix driver)

CRs-fixed: 591376
Change-Id: I6c18e153ddf18667ca83d47df20c71bce6dbfa21
Signed-off-by: Himanshu Aggarwal <haggarwa@codeaurora.org>