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This forward port reverts
    commit e457b74c

No longer as necessary once we add
    liblog: Instrument logging of logd write drops
Although this provided an indication of how close statistically we
were to overloading logd it is simpler to understand fails thus to
hunt and peck a corrected value for /proc/sys/net/unix/max_dgram_qlen

Change-Id: I2b30e0fc30625a48fd11a12c2d2cc6a41f26226f