Revert "NdkMediaExtractor: per-sample format metadata API"

This reverts commit 062ffd042fcbd237f445d499bc8ea8c5baf61d98.

Bug: 63934228
Bug: 74089496

Reason for revert: original change bypassed presubmit, causing mediaextractor crash, 

Change-Id: Iac4c49659dfa7415908d60da98a2285c583a1196
22 files changed