Revert "PreProcessing: Data conversions for webrtc module and AEC check"

This reverts commit 57e5eb546d762fce89ef50dd9e7f01fd77c97f2a.

Reason for revert: b/324156333

Change-Id: I917edd7d4774c810e391eed78146c01484dfa7b3
1 file changed