This reverts commit 8ae033d1a3d65281d3ad1f07f430e74d3a01b1b9.
Revert "HDFS-16531. Avoid setReplication writing an edit record if old replication equals the new value (#4148). Contributed by Stephen O'Donnell."
HADOOP-17925. BUILDING.txt should not encourage to activate docs profile on building binary artifacts. (#3509)
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