[13u] RFR: 8228400: Remove built-in AArch64 simulator

[Sergey Nazarkin]

Original change:
https://bugs.openjdk.java.net/browse/JDK-8228400
https://hg.openjdk.java.net/jdk/jdk/rev/01bca26734bb

11u patch discussion
https://mail.openjdk.java.net/pipermail/jdk-updates-dev/2019-July/001518.html

13u webrev
http://cr.openjdk.java.net/~snazarki/webrev/8228400/

The patch is applied cleanly except few files.  
 - shenandoahBarrierSetAssembler_aarch64.cpp 
	blrt->blr fails due to context changes

 - sharedRuntime_aarch64.cpp 
	can’t remote BUILTIN_SIM block due to context changes

 - os_linux_aarch64.cpp 
	has additional defines and thus conflicts
	 can’t remote BUILTIN_SIM block due to context


Testing: aarch64 hotspot:tier1, jdk:tier1