Revert "Disable dcheck on linux"
Revert "Disable dcheck on linux"

This reverts commit 971c66c810276ce1b130613f59d2a621495b708c.

Reason for revert: Speculative revert: breaks downstream project

Original change's description:
> Disable dcheck on linux
> 
> Bug: webrtc:11490
> Change-Id: I731daa08378e861aeb51da3b819e3c472a9cad9b
> No-Try: true
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/172937
> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> Commit-Queue: Tommi <tommi@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#31012}

TBR=mbonadei@webrtc.org,tommi@webrtc.org

Change-Id: I6bd026d65e307714a86f00e93a4ea8158b91592a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:11490
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/173084
Reviewed-by: Artem Titov <1e27363ccc366a7ff0fdde48204d68d5ebfeccc5@webrtc.org>
Commit-Queue: Artem Titov <1e27363ccc366a7ff0fdde48204d68d5ebfeccc5@webrtc.org>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#31017}

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