Remove top chrome material design FYI 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 4b5cfe410239ac7edcfee569a2b789c019ac7fcd..9902340facf5fd2e12a720a8c3f63c05b89fbe11 100644
--- a/masters/master.chromium.fyi/slaves.cfg
+++ b/masters/master.chromium.fyi/slaves.cfg
@@ -672,38 +672,6 @@ slaves = [
   },
   {
     'master': 'ChromiumFYI',
-    'builder': 'MD Top Chrome ChromeOS non-material',
-    'hostname': 'slave45-c1',
-    'os': 'linux',
-    'version': 'trusty',
-    'bits': '64',
-  },
-  {
-    'master': 'ChromiumFYI',
-    'builder': 'MD Top Chrome ChromeOS material-hybrid',
-    'hostname': 'slave68-c1',
-    'os': 'linux',
-    'version': 'trusty',
-    'bits': '64',
-  },
-  {
-    'master': 'ChromiumFYI',
-    'builder': 'MD Top Chrome Win material',
-    'hostname': 'vm107-m1',
-    'os': 'win',
-    'version': 'win7',
-    'bits': '64',
-  },
-  {
-    'master': 'ChromiumFYI',
-    'builder': 'MD Top Chrome Linux material',
-    'hostname': 'slave69-c1',
-    'os': 'linux',
-    'version': 'trusty',
-    'bits': '64',
-  },
-  {
-    'master': 'ChromiumFYI',
     'builder': 'Linux remote_run Builder',
     'hostname': 'slave73-c1',
     'os': 'linux',