Remove redefined macros from BitrateAdjuster

This CL removes the include that redefines Chrome macros, so Chrome
can include this header in https://codereview.chromium.org/1818903004/.

Review URL: https://codereview.webrtc.org/1824833002

Cr-Original-Commit-Position: refs/heads/master@{#12095}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 2df29cb673d38a91c6a08326ae3009aba4feae9a
1 file changed