RFR(XXS) 8245335 [TESTBUG] DeterministicDump.java fails with release JVM

[Ioi Lam]

https://bugs.openjdk.java.net/browse/JDK-8245335
http://cr.openjdk.java.net/~iklam/jdk15/8245335-DeterministicDump.java-fails-release-vm.v01/

This test is too aggressive. DeterministicDump.java was created
in JDK-8241071 (Generation of classes.jsa with -Xshare:dump is not
deterministic). The goal of JDK-8241071 is for "make images" to produce
the same bits.

Since the Makefiles will not specify "-XX:MetaspaceSize=1M", testing with it
is outside of the scope of JDK-8241071. So this part of the test should
be removed.

Thanks
- Ioi