remove stray usage of logging_like_official_build

The logging_like_official_build gyp setting was removed in this CL:
https://codereview.chromium.org/189603007

BUG=334021

Review URL: https://codereview.chromium.org/682603002

Cr-Commit-Position: refs/heads/master@{#301344}

android_webview/tools/gyp_webview

@@ -47,7 +47,6 @@ DEFINES+=" android_toolchain=${ANDROID_TOOLCHAIN}"
 
 # TODO: Get rid of this block, crbug.com/334021
 if [[ -n "$CHROME_ANDROID_WEBVIEW_OFFICIAL_BUILD" ]]; then
-  DEFINES+=" logging_like_official_build=1"
   DEFINES+=" tracing_like_official_build=1"
 fi