Revert^4 "Introduce versioned data files to tzdata module."

Reverts aosp/3112090.

NO_IFTTT=Introducing linter checks.

Bug: 319103072

Test: CtsIcuTestCases
Test: CtsLibcoreTestCases
Test: CtsLibcoreOjTestCases
Test: CtsIcu4cTestCases
Test: CtsBionicTestCases
Test: CtsTextTestCases
Test: MtsTimeZoneDataTestCases
Change-Id: I8619c71b882dce19c3c4d14b9b5981d9df432bdf
7 files changed