android/guava/src/com/google/common/collect/HashBiMap.java
void removeEntryKeyHashKnown(int entry, int keyHash) {
    removeEntry(entry, keyHash, Hashing.smearedHash(values[entry]));
  }
void removeEntryKeyHashKnown(int entry, int keyHash) {
    removeEntry(entry, keyHash, Hashing.smearedHash(values[entry]));
  }
Removes the entry at the specified index, given the hash of its key.