intellij: use Bazel-built goimports

Test Plan: Tested the watcher, it fixed my code

X-Origin-Diff: phab/D663
GitOrigin-RevId: 0e06b3a4043e1671d8bb553312c8894d7c916933
diff --git a/third_party/go/repositories.bzl b/third_party/go/repositories.bzl
index e934373..e9cfacf 100644
--- a/third_party/go/repositories.bzl
+++ b/third_party/go/repositories.bzl
@@ -1627,6 +1627,12 @@
         sum = "h1:/5xXl8Y5W96D+TtHSlonuFqGHIWVuyCkGJLwGh9JJFs=",
     )
     go_repository(
+        name = "org_golang_x_tools",
+        importpath = "golang.org/x/tools",
+        version = "v0.0.0-20201215171152-6307297f4651",
+        sum = "h1:bdfqbHwYVvhLEIkESR524rqSsmV06Og3Fgz60LE7vZc=",
+    )
+    go_repository(
         name = "org_golang_x_xerrors",
         importpath = "golang.org/x/xerrors",
         version = "v0.0.0-20191204190536-9bdfabe68543",
diff --git a/third_party/go/shelf.pb.text b/third_party/go/shelf.pb.text
index e78522e..8e4c3dc 100644
--- a/third_party/go/shelf.pb.text
+++ b/third_party/go/shelf.pb.text
@@ -2526,6 +2526,13 @@
   semver: "v0.0.0-20191024005414-555d28b269f0"
 >
 entry: <
+  import_path: "golang.org/x/tools"
+  version: "v0.0.0-20201215171152-6307297f4651"
+  bazel_name: "org_golang_x_tools"
+  sum: "h1:bdfqbHwYVvhLEIkESR524rqSsmV06Og3Fgz60LE7vZc="
+  semver: "v0.0.0-20201215171152-6307297f4651"
+>
+entry: <
   import_path: "golang.org/x/xerrors"
   version: "v0.0.0-20191204190536-9bdfabe68543"
   bazel_name: "org_golang_x_xerrors"