RFR(S) : 8186537 : remove unnecessary @requires from hotspot/compiler/aot tests

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8186537/webrev.00/index.html
> 54 lines changed: 0 ins; 54 del; 0 mod; 

Hi all,

could you please review this small patch which cleans up @requires in aot tests?
after JDK-8185536[1], all aot tests are marked w/ '@requires vm.aot', so they will be executed only if a VM under test supports AOT. this made '@requires vm.bits == "64" & (os.arch == "amd64" | os.arch == "x86_64")' in these tests redundant.

webrev: http://cr.openjdk.java.net/~iignatyev//8186537/webrev.00/index.html
jbs: https://bugs.openjdk.java.net/browse/JDK-8186537sca
testing: hotspot/compiler/aot tests on platforms w/ and w/o AOT support. number of selected/run tests is the same as before the fix.

[1] https://bugs.openjdk.java.net/browse/JDK-8185536

Thanks,
-- Igor