Stop using getDSTSavings.

The original code was actually correct, but code calling inDaylightTime
and getDSTSavings directly is inherently suspect, so I want to clean up
this false positive along with the real abusers.

Bug: 6901488
Change-Id: I6c89e7aa29d88b81ed2c7fd6c915e0346b90a442
1 file changed