Revert "Add gcstress tests failing on host since ICU refactoring"

This reverts commit 26d88f8735d94cb4c42733baedeb09695d440795.

GCStress is now less chatty, so we don't expect this to timeout any
more (follows https://android-review.googlesource.com/1371328/)

Bug: 161420453
Test: art/tools/run-libcore-tests.sh --mode=host --variant=X32 \
            --debug  --vm-arg -Xgc:gcstress -- libcore.java.text
Change-Id: I7eee3dd8e618c04d0630a145f1eeb1c80df22250
1 file changed