RFR: 8264805: Remove the experimental Ahead-of-Time Compiler

[Vladimir Kozlov]

As part of [JEP 410](http://openjdk.java.net/jeps/410) remove code related to Ahead-of-Time Compiler from JDK: 

- `jdk.aot` module — the `jaotc` tool 
- `src/hotspot/share/aot` — loads AoT compiled code into VM for execution 
- related HotSpot code guarded by `#if INCLUDE_AOT` 

Additionally, remove tests as well as code in makefiles related to AoT compilation.

Tested hs-tier1-4

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Commit messages:
 - 8264805: Remove the experimental Ahead-of-Time Compiler

Changes: https://git.openjdk.java.net/jdk/pull/3398/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3398&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8264805
  Stats: 26903 lines in 375 files changed: 4 ins; 26703 del; 196 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3398.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3398/head:pull/3398

PR: https://git.openjdk.java.net/jdk/pull/3398