[luci-milo] Delete buildbot versions of migrated ios-* builders

R=hinoka@chromium.org

Bug: 843638
Change-Id: I80fc3f991b697298c8866d6e81ea64e7c1aed256
Reviewed-on: https://chromium-review.googlesource.com/1062944Reviewed-by: Ryan Tseng <hinoka@chromium.org>
Commit-Queue: Sergey Berezin <sergeyberezin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#559345}

infra/config/global/luci-milo.cfg

@@ -417,7 +417,6 @@ consoles {
     short_name: "13"
   }
   builders {
-    name: "buildbot/chromium.mac/ios-device"
     name: "buildbucket/luci.chromium.ci/ios-device"
     category: "chromium.mac|ios"
     short_name: "dev"
@@ -428,19 +427,16 @@ consoles {
     short_name: "sim"
   }
   builders {
-    name: "buildbot/chromium.mac/ios-simulator-full-configs"
     name: "buildbucket/luci.chromium.ci/ios-simulator-full-configs"
     category: "chromium.mac|ios"
     short_name: "ful"
   }
   builders {
-    name: "buildbot/chromium.mac/ios-device-xcode-clang"
     name: "buildbucket/luci.chromium.ci/ios-device-xcode-clang"
     category: "chromium.mac|ios|xcode"
     short_name: "dev"
   }
   builders {
-    name: "buildbot/chromium.mac/ios-simulator-xcode-clang"
     name: "buildbucket/luci.chromium.ci/ios-simulator-xcode-clang"
     category: "chromium.mac|ios|xcode"
     short_name: "sim"
@@ -877,32 +873,30 @@ consoles {
     short_name: "13"
   }
   builders {
-    name: "buildbot/chromium.mac/ios-device"
     name: "buildbucket/luci.chromium.ci/ios-device"
     category: "ios"
     short_name: "dev"
   }
   builders {
-    name: "buildbot/chromium.mac/ios-simulator-full-configs"
+    name: "buildbucket/luci.chromium.ci/ios-simulator"
+    category: "ios"
+    short_name: "sim"
+  }
+  builders {
     name: "buildbucket/luci.chromium.ci/ios-simulator-full-configs"
     category: "ios"
     short_name: "ful"
   }
   builders {
-    name: "buildbot/chromium.mac/ios-device-xcode-clang"
     name: "buildbucket/luci.chromium.ci/ios-device-xcode-clang"
     category: "ios|xcode"
     short_name: "dev"
   }
   builders {
-    name: "buildbot/chromium.mac/ios-simulator-xcode-clang"
     name: "buildbucket/luci.chromium.ci/ios-simulator-xcode-clang"
     category: "ios|xcode"
     short_name: "sim"
   }
-  builders {
-    name: "buildbucket/luci.chromium.ci/ios-simulator"
-  }
 }
 
 consoles {
@@ -1649,46 +1643,6 @@ consoles {
     category: "gpu|android|release"
     short_name: "bb"
   }
-  builders {
-    name: "buildbot/chromium.mac/ios-device"
-    category: "ios|ios-device"
-    short_name: "bb"
-  }
-  builders {
-    name: "buildbucket/luci.chromium.ci/ios-device"
-    category: "ios|ios-device"
-    short_name: "ci"
-  }
-  builders {
-    name: "buildbot/chromium.mac/ios-simulator-full-configs"
-    category: "ios|ios-simulator-full-configs"
-    short_name: "bb"
-  }
-  builders {
-    name: "buildbucket/luci.chromium.ci/ios-simulator-full-configs"
-    category: "ios|ios-simulator-full-configs"
-    short_name: "ci"
-  }
-  builders {
-    name: "buildbot/chromium.mac/ios-device-xcode-clang"
-    category: "ios|ios-device-xcode-clang"
-    short_name: "bb"
-  }
-  builders {
-    name: "buildbucket/luci.chromium.ci/ios-device-xcode-clang"
-    category: "ios|ios-device-xcode-clang"
-    short_name: "ci"
-  }
-  builders {
-    name: "buildbot/chromium.mac/ios-simulator-xcode-clang"
-    category: "ios|ios-simulator-xcode-clang"
-    short_name: "bb"
-  }
-  builders {
-    name: "buildbucket/luci.chromium.ci/ios-simulator-xcode-clang"
-    category: "ios|ios-simulator-xcode-clang"
-    short_name: "ci"
-  }
   builders {
     name: "buildbucket/luci.chromium.ci/Cast Android (dbg)"
     category: "android|cast"
@@ -4257,23 +4211,18 @@ consoles {
   ref: "refs/heads/master"
   manifest_name: "REVISION"
   builders {
-    name: "buildbot/tryserver.chromium.mac/ios-device"
     name: "buildbucket/luci.chromium.try/ios-device"
   }
   builders {
-    name: "buildbot/tryserver.chromium.mac/ios-device-xcode-clang"
     name: "buildbucket/luci.chromium.try/ios-device-xcode-clang"
   }
   builders {
-    name: "buildbot/tryserver.chromium.mac/ios-simulator-cronet"
     name: "buildbucket/luci.chromium.try/ios-simulator-cronet"
   }
   builders {
-    name: "buildbot/tryserver.chromium.mac/ios-simulator-full-configs"
     name: "buildbucket/luci.chromium.try/ios-simulator-full-configs"
   }
   builders {
-    name: "buildbot/tryserver.chromium.mac/ios-simulator-xcode-clang"
     name: "buildbucket/luci.chromium.try/ios-simulator-xcode-clang"
   }
   builders {