Remove "AV Win7" bot.

build/masters/master.chromium.perf_av/slaves.cfg

Index: build/masters/master.chromium.perf_av/slaves.cfg
===================================================================
--- build/masters/master.chromium.perf_av/slaves.cfg	(revision 240781)
+++ build/masters/master.chromium.perf_av/slaves.cfg	(working copy)
@@ -24,12 +24,4 @@
     'version': 'precise',
     'bits': '64',
   },
-  {
-    'master': 'ChromiumPerfAv',
-    'hostname': 'chromeperf33',

[Nico, 2013/12/13 23:09:09]

(btw, masters/master.chromium.unused is gone – is there a list of free slaves
somewhere these days, or do i just delete this?)

[ghost stip (do not use), 2013/12/13 23:57:09]

I thought it was still there, I'll ask the sysadmins what's up

-    'builder': 'AV Win7',
-    'os': 'win',
-    'version': 'Win7',
-    'bits': '64',
-  },
 ]