Revert opus memcheck suppression
Revert opus memcheck suppression

BUG=https://bugs.chromium.org/p/webrtc/issues/detail?id=5651

Review URL: https://codereview.webrtc.org/1801233002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#12012}

TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc