Removed unused variable.

roles/kill_memory_hogs/files/kill_hoggs.py

@@ -89,7 +89,6 @@ def kill_hogs(memory_threshold,
             # see https://psutil.readthedocs.io/en/latest/
             proc.cached_cpu_percent = proc.cpu_percent()
             proc.cached_memory_percent = proc.memory_percent()
-            proc_cpu_percent = 0
 
             if proc.uids().real == 0 or (proc.cached_memory_percent < .1
                                          and proc.cached_cpu_percent < 1):