Seigo Nonaka 6a5534a437 Remove unused functions.
This CL is essentially reverting following changes:
- "Serialize and deserialize supported axes."
  I4086fb887e13f872390b533584bce6f1d5598ea0
- "Make SparseBitSet serializable."
  I0463138adcf234739bb3ce1cdadf382021921f3e

Bug: 36232655
Test: N/A
Change-Id: I25c701e1805e92b01034142147a9925f86533819
2017-03-22 16:00:35 -07:00
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Other 1.9%