Removing macro in acm_opus.cc
Removing macro in acm_opus.cc

Remove it since macros are not recommended to use according to code style guide.

BUG=
R=tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/21219004

git-svn-id: 03ae4fbe531b1eefc9d815f31e49022782c42458@6917 4adac7df-926f-26a2-2b94-8c16560cd09d

PersonifyInc/chromium_webrtc,Alkalyne/webrtctrunk,Omegaphora/external_chromium_org_third_party_webrtc,svn2github/webrtc-Revision-8758,jchavanton/webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,jchavanton/webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,sippet/webrtc,svn2github/webrtc-Revision-8758,Omegaphora/external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,sippet/webrtc,krieger-od/nwjs_chromium_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,PersonifyInc/chromium_webrtc,krieger-od/nwjs_chromium_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,krieger-od/nwjs_chromium_webrtc,jchavanton/webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,krieger-od/nwjs_chromium_webrtc,MIPS/external-chromium_org-third_party-webrtc,Alkalyne/webrtctrunk,xin3liang/platform_external_chromium_org_third_party_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,sippet/webrtc,aleonliao/webrtc-trunk,svn2github/webrtc-Revision-8758,aleonliao/webrtc-trunk,sippet/webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,android-ia/platform_external_chromium_org_third_party_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,Omegaphora/external_chromium_org_third_party_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,aleonliao/webrtc-trunk,krieger-od/webrtc,Omegaphora/external_chromium_org_third_party_webrtc,jchavanton/webrtc,svn2github/webrtc-Revision-8758,krieger-od/webrtc,krieger-od/webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,jchavanton/webrtc,Alkalyne/webrtctrunk,jgcaaprom/android_external_chromium_org_third_party_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,aleonliao/webrtc-trunk,krieger-od/nwjs_chromium_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,jchavanton/webrtc,sippet/webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,krieger-od/webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,krieger-od/webrtc,svn2github/webrtc-Revision-8758,jgcaaprom/android_external_chromium_org_third_party_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,PersonifyInc/chromium_webrtc,PersonifyInc/chromium_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,aleonliao/webrtc-trunk,jchavanton/webrtc,MIPS/external-chromium_org-third_party-webrtc,PersonifyInc/chromium_webrtc,krieger-od/webrtc,Omegaphora/external_chromium_org_third_party_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,MIPS/external-chromium_org-third_party-webrtc,aleonliao/webrtc-trunk,krieger-od/nwjs_chromium_webrtc,PersonifyInc/chromium_webrtc,sippet/webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,svn2github/webrtc-Revision-8758