tests: Remove references to resolved Jira Issues in asmtests

A comment in tests/gem5/asmtest/tests.py refers to failing tests due
to issues outlined in https://gem5.atlassian.net/browse/GEM5-494 and
https://gem5.atlassian.net/browse/GEM5-497. Though, theses tests now
pass, and these issues have been resolved. This patch updates this
comment to no longer refer to these Jira issues.

Change-Id: Ic1b477e1570765f33a41c5e852bf80a09c172545
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/43445
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
diff --git a/tests/gem5/asmtest/tests.py b/tests/gem5/asmtest/tests.py
index f267b91..6f2c7117 100755
--- a/tests/gem5/asmtest/tests.py
+++ b/tests/gem5/asmtest/tests.py
@@ -90,11 +90,8 @@
 cpu_types = ('AtomicSimpleCPU', 'TimingSimpleCPU', 'MinorCPU', 'DerivO3CPU')
 # The following lists the RISCV binaries. Those commented out presently result
-# in a test failure. They are outlined in the following Jira Issues:
-# https://gem5.atlassian.net/browse/GEM5-494
+# in a test failure. This is outlined in the following Jira issue:
 # https://gem5.atlassian.net/browse/GEM5-496
-# https://gem5.atlassian.net/browse/GEM5-497
 binaries = (