RFR: JDK-8255780: Remove unused overloads of VMError::report_and_die()

[Thomas Stuefe]

VMError::report_and_die() comes in a lot of overloads. These are unused:

void report_and_die(const char* message, const char* detail_fmt, ...)
void report_and_die(const char* message);

and can be removed.

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Commit messages:
 - remove unused functions

Changes: https://git.openjdk.java.net/jdk/pull/1018/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1018&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8255780
  Stats: 16 lines in 2 files changed: 0 ins; 16 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1018.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1018/head:pull/1018

PR: https://git.openjdk.java.net/jdk/pull/1018