[PATCH 2 of 2] run-tests: drop fallback for proc.terminate() for pre-py2.7

[Martin von Zweigbergk]

# HG changeset patch
# User Martin von Zweigbergk <martinvonz at google.com>
# Date 1494970933 25200
#      Tue May 16 14:42:13 2017 -0700
# Node ID 40067709292af7cca062f2f88e3d808d28400df2
# Parent  e97e9dac1ede83367bdb494820276f67f0c8f269
run-tests: drop fallback for proc.terminate() for pre-py2.7

diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -523,10 +523,10 @@
         sys.stdout.flush()
 
 def terminate(proc):
-    """Terminate subprocess (with fallback for Python versions < 2.6)"""
+    """Terminate subprocess"""
     vlog('# Terminating process %d' % proc.pid)
     try:
-        getattr(proc, 'terminate', lambda : os.kill(proc.pid, signal.SIGTERM))()
+        proc.terminate()
     except OSError:
         pass