Merge pull request swiftlang#404 from apple/remove-sourcery-xfail

Remove Sourcery xfail

Author: xedin

projects.json

@@ -2402,12 +2402,7 @@
       {
         "action": "BuildSwiftPackage",
         "configuration": "release",
-        "tags": "sourcekit",
-        "xfail": {
-          "issue": "rdar://56786088",
-          "compatibility": "5.1",
-          "branch": "master"
-        }
+        "tags": "sourcekit"
       },
       {
         "action": "TestSwiftPackage"