[jdk8u-ri] RFR: 8332085: Remove 10 year old transition check in GenerateCurrencyData tool

[Naoto Sato]

Fixing a build error on 8u-RI. The build tool that generates the currency data had a check that throws an exception if the transition date is more than 10 years away (past/future). The check does not seem meaningful. Removing the check will fix the issue.

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Commit messages:
 - initial commit

Changes: https://git.openjdk.org/jdk8u-ri/pull/17/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk8u-ri&pr=17&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8332085
  Stats: 4 lines in 1 file changed: 0 ins; 3 del; 1 mod
  Patch: https://git.openjdk.org/jdk8u-ri/pull/17.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-ri.git pull/17/head:pull/17

PR: https://git.openjdk.org/jdk8u-ri/pull/17