resources: Removed Unix Time print from rv64i

Printing the Unix Time was making the
`test-insttest-rv64i-linux-MinorCPU-RISCV-x86_64-opt-MatchStdoutNoPerf`
TestLib test fail, as this value obviously changes between runs.

Change-Id: I6b8a8904cbdd457c0bd190d3132fe38d9a37bed1
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-resources/+/32917
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby R. Bruce <bbruce@ucdavis.edu>
diff --git a/src/insttest/rv64i.cpp b/src/insttest/rv64i.cpp
index cfe5e29..22a5259 100644
--- a/src/insttest/rv64i.cpp
+++ b/src/insttest/rv64i.cpp
@@ -340,7 +340,6 @@
     expect<bool>(true, []{
                 uint64_t time = 0;
                 asm("rdtime %0" : "=r" (time));
-                cout << "Time: " << time << endl;
                 return time > 0;
             }, "rdtime");
     expect<bool>(true, []{