msm: vidc: Remove SSR init/uninit calls

SSR architecture has changed so driver does
not need to call ssr init/uninit anymore.
Changes need to be made according to new
architecture. Removing the old code.

Change-Id: I5a4334a4da604a78775864a310f2a12378a8de83
Signed-off-by: Vinay Kalia <vkalia@codeaurora.org>