Revert "Fix Camera preview"

This reverts commit d460ed33286dd88249599dd58caa4697a85bc777.
Revert "add second half of camera fix from https://github.com/invisiblek/linux-msm-d2/commit/c14d261cd064c19dc8d06e"

This reverts commit a06a7a1f6b0a04866c4dbeb8e71431a520100add.