docs: Remove duplicated phrase am: c08a545a am: c09f2b6c am: 78ec6628 am: 2c33eb96

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20759942



Change-Id: Ia3e8db40d83ce36634d0d4d587a77e0d4689fc89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>