Move beefy slaves from a canary LTO Linux Perf to the real Linux Perf builders.

masters/master.chromium.fyi/slaves.cfg

Index: masters/master.chromium.fyi/slaves.cfg
diff --git a/masters/master.chromium.fyi/slaves.cfg b/masters/master.chromium.fyi/slaves.cfg
index fdf5655a688fd791859cd3618ae685c1bd89cb88..76ea4b6a18edb1ed5959a13900cbd0b6067bf568 100644
--- a/masters/master.chromium.fyi/slaves.cfg
+++ b/masters/master.chromium.fyi/slaves.cfg
@@ -619,6 +619,7 @@ slaves = [
     'builder': [
       'CFI Linux CF',
       'LTO Linux',
+      'LTO Linux Perf',
     ],
     'hostname': 'slave33-c1',
     'os': 'linux',
@@ -693,13 +694,3 @@ slaves = [
     'bits': '64',
   },
 ]
-
-for slave in range(78, 108):
-  slaves.append({
-    'master': 'ChromiumFYI',
-    'builder': 'LTO Linux Perf',
-    'hostname': 'slave%d-c1' % slave,
-    'os': 'linux',
-    'version': 'trusty',
-    'bits': '64',
-  })