Necessary changes to parse required CEA extension EDID blocks
have been made to vendor specific drivers. No need to retain
the block parsing in DRM framework.
This reverts commit 1e3594cbb8.
Bug: 139653858
Change-Id: Ia88ab5ed0314b964ad44556e40c2e4d55e0b181c
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>