liblog: remove more unused code

Cleanup the headers; we really don't want to encourage any more
cutils/list.h usage...

Remove __android_log_uid() since the only remaining users are built
for device, so they can just use getuid() directly.

Test: build
Change-Id: I62be2c1e43d83807deaa9342afcc72459947cf15
7 files changed
tree: 9f5d5b9dcf89d07a449939ba56b903d7ad560528
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/