Replacing unnecessary conditional with DCHECK in OpenSSLAdapter
Replacing unnecessary conditional with DCHECK in OpenSSLAdapter

Follow-up from https://codereview.webrtc.org/2915243002/

BUG=None
TBR=pthatcher@webrtc.org

Review-Url: https://codereview.webrtc.org/2917933003
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#18418}

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