Update configs for WebKit Mac10.13, Win10.

BUG=790343,864817

Change-Id: Ia6bbae90334828022d5ec994d5ab82427c1cb66d
Reviewed-on: https://chromium-review.googlesource.com/c/1284769
Commit-Queue: Jao-ke Chin-Lee <jchinlee@chromium.org>
Reviewed-by: Vadim Shtayura <vadimsh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600132}

infra/config/global/cr-buildbucket.cfg

@@ -2158,12 +2158,6 @@ buckets {
       mixins: "fyi-ci"
       mixins: "libfuzzer"
     }
-    builders {
-      name: "WebKit Win Builder"
-      # This may be obsolete (WebKit Win10 is triggered by Win Builder).
-      dimensions: "os:Windows-10"
-      mixins: "webkit-ci"
-    }
     builders {
       name: "VR Linux"
       dimensions: "os:Ubuntu-14.04"
@@ -2363,12 +2357,6 @@ buckets {
       dimensions: "os:Ubuntu-14.04"
       mixins: "android-fyi-ci"
     }
-    builders {
-      name: "WebKit Mac Builder"
-      # This may be obsolete (WebKit Mac testers are triggered by Mac Builder).
-      dimensions: "os:Mac-10.12.2"
-      mixins: "webkit-ci"
-    }
     builders {
       name: "Linux ChromiumOS MSan Builder"
       dimensions: "os:Ubuntu-14.04"

infra/config/global/luci-milo.cfg

@@ -695,23 +695,11 @@ consoles {
     short_name: "cfi"
   }
   builders {
-    name: "buildbot/chromium.webkit/WebKit Win Builder"
-    category: "chromium.webkit|win rel|builder"
-    short_name: "32"
-  }
-  builders {
-    name: "buildbot/chromium.webkit/WebKit Win10"
     name: "buildbucket/luci.chromium.ci/WebKit Win10"
     category: "chromium.webkit|win rel|tester"
     short_name: "10"
   }
   builders {
-    name: "buildbot/chromium.webkit/WebKit Mac Builder"
-    category: "chromium.webkit|mac|release"
-    short_name: "bld"
-  }
-  builders {
-    name: "buildbot/chromium.webkit/WebKit Mac10.13 (retina)"
     name: "buildbucket/luci.chromium.ci/WebKit Mac10.13 (retina)"
     category: "chromium.webkit|mac|release"
     short_name: "13r"
@@ -1150,7 +1138,6 @@ consoles {
     short_name: "32"
   }
   builders {
-    name: "buildbot/chromium.webkit/WebKit Win10"
     name: "buildbucket/luci.chromium.ci/WebKit Win10"
     category: "win|release|tester"
     short_name: "10"
@@ -1162,7 +1149,6 @@ consoles {
     short_name: "bld"
   }
   builders {
-    name: "buildbot/chromium.webkit/WebKit Mac10.13 (retina)"
     name: "buildbucket/luci.chromium.ci/WebKit Mac10.13 (retina)"
     category: "mac|release"
     short_name: "13r"

infra/config/global/luci-scheduler.cfg

@@ -3680,17 +3680,6 @@ job {
   }
 }
 
-job {
-  # This may be obsolete (WebKit Mac testers are triggered by Mac Builder).
-  id: "WebKit Mac Builder"
-  acl_sets: "default"
-  buildbucket: {
-    server: "cr-buildbucket.appspot.com"
-    bucket: "luci.chromium.ci"
-    builder: "WebKit Mac Builder"
-  }
-}
-
 job {
   id: "WebKit Mac10.13 (retina)"
   # Triggered by "Mac Builder"
@@ -3702,17 +3691,6 @@ job {
   }
 }
 
-job {
-  id: "WebKit Win Builder"
-  # This may be obsolete (WebKit Win10 is triggered by Win Builder).
-  acl_sets: "default"
-  buildbucket: {
-    server: "cr-buildbucket.appspot.com"
-    bucket: "luci.chromium.ci"
-    builder: "WebKit Win Builder"
-  }
-}
-
 job {
   id: "WebKit Win10"
   # Triggered by "Win Builder"