remove dependency to python2

Author: z

src/test/check_syscall_perf_interval.py

@@ -1,5 +1,3 @@
-from __future__ import print_function
-
 import sys
 import re
 

src/test/clone_interruption.run

@@ -4,5 +4,5 @@ RECORD_ARGS="-c100"
 record $TESTNAME
 # Don't use pipes here since we need 'debug' to run in the same bash process
 declare -i stop_at_event=`rr --suppress-environment-warnings dump $workdir/latest-trace | \
-    python2 $TESTDIR/clone_interruption_finder.py`
+    python $TESTDIR/clone_interruption_finder.py`
 debug clone_interruption "-g $stop_at_event"

src/test/clone_interruption_finder.py

@@ -1,5 +1,3 @@
-from __future__ import print_function
-
 import sys
 import re
 

src/test/cpuid.run

@@ -14,7 +14,7 @@ if [[ $@ == -n ]]; then
 	    ;;
     esac
     rr --suppress-environment-warnings dump $workdir/latest-trace | \
-        python2 $TESTDIR/check_syscall_perf_interval.py $syscall rbc 2
+        python $TESTDIR/check_syscall_perf_interval.py $syscall rbc 2
     if [[ $? != 0 ]]; then
         failed "expected 2 rbcs between each geteuid32 syscall"
     fi