libprocessgroup: remove failure log for aggregate profiles The inner profile should print error message if needed. Bug: 178070122 Test: Build Signed-off-by: Wei Wang <wvw@google.com> Change-Id: I2d9d54e21fb064678feccdbae453a398806d51d6 (cherry picked from commit 8722e4d21903c56b65d7dea53bc4bc44ca85de34)