Revert "mediaplayer: ensure secure decoders are instantiated before starting source"

Reverting a CL that auto-merged from lmp-mr1-dev

This reverts commit 68fca636ac961c181ee71a49f151c71b564258d0.

Change-Id: I797955c4745710452516b0d487529c95e2d1893e
5 files changed